Which of the following is a process in which the DNA itself is modified by environmental events and those genetic changes are then transmitted to children?
Making matters even more complicated are very recent studies of what is known as epigenetics (see module, “Epigenetics”), a process in which the DNA itself is modified by environmental events, and those genetic changes transmitted to children.... read more ›
What is the name of the process in which the DNA itself is modified by environmental events and those genetic changes are then transmitted to children?
Epigenetics is the study of how cells control gene activity without changing the DNA sequence. "Epi-"means on or above in Greek,and "epigenetic" describes factors beyond the genetic code. Epigenetic changes are modifications to DNA that regulate whether genes are turned on or off.... see more ›
What is the scientific discipline that analyzes the similarities among individuals based on how biologically related they are?
The scientific discipline of quantitative genetics examines similarities between individuals and analyzes them based on how biologically related they are. Quantitative genetics looks at similarities among individuals, analyzing how biologically related they are.... read more ›
Do inherited traits or life experiences play a greater role in shaping your personality? The nature versus nurture debate is one of the oldest issues in psychology. The debate centers on the relative contributions of genetic inheritance and environmental factors to human development.... continue reading ›
Which of the following is the most accurate description of the methodological advantage of twin studies quizlet?
Which of the following is the most accurate description of the methodological advantage of twin studies? Because twins share DNA it is possible to estimate the contribution of genetics to their personality and behavior.... see more ›
What are epigenetic modifications? A: The addition of reversible changes to histone proteins and DNA.... continue reading ›
epigenetics. The study of heritable changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence. Epigenetic marks include covalent DNA modifications and posttranslational histone modifications. phenotype.... view details ›
What scientific field attempts to identify and understand the relationship between one's genetic code and their actions?
The scientific field of behavior genetics attempts to study these differences empirically, either by examining similarities among family members with different degrees of genetic relatedness, or, more recently, by studying differences in the DNA of people with different behavioral traits.... read more ›
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction.... read more ›
How do twin studies both fraternal and identical help psychologists understand the nature of genetics and heritability?
Twins and siblings can help us understand whether people are different because of genetic differences or because they live in different environments. Identical twins share the same genes, while non-identical twins share, on average, half of their genes with the other twin.... continue reading ›
argument of what determines our personality and behavior: innate biology or life experience. nature-only view. who we are comes from inborn tendencies and genetically based traits. nurture-only view. we are all essentially the same at birth, and we are the product of our experiences.... read more ›
Socialization is a matter of nurture rather than nature. A century ago, most people thought human behavior resulted from biological instinct. For us as human beings, it is our nature to nurture.... continue reading ›
Nature advocates argue that genetics have a high impact on obesity and high blood pressure. Nurture proponents point to the poor eating habits that cause obesity and the limited ability to regulate personal habits that lead to high blood pressure.... view details ›
Which of the following is a major problem with arriving at conclusive scientific answer to the nature-nurture debate?
Which of the following is a major problem with arriving at a conclusive scientific answer to the nature-nurture debate? Humans cannot easily be randomly assigned to different genetic and environmental conditions.... see more ›
Which of the following sentences best describes current thinking on the nature-nurture debate? Most psychological traits have a genetic component but nature also has the ability to change even supposedly "fixed" traits such as height.... see details ›
Which of the following best describes the current thinking regarding the relationship between nature and nurture?
Which of the following best describes the current thinking regarding the relationship between nature and nurture? Nature and nurture interact in a way that is impossible to separate. Mechanisms of inheritance are to a large degree relevant across biological organisms.... view details ›
Definition of Epigenetics. -Epigenetics- the study of inherited changes in phenotype (appearance) or gene expression caused by mechanisms other than changes in the underlying DNA sequence.... see details ›
Epigenetics is the study of how your behaviors and environment can cause changes that affect the way your genes work. Unlike genetic changes, epigenetic changes are reversible and do not change your DNA sequence, but they can change how your body reads a DNA sequence.... see details ›
Epigenetic changes may be transmitted to offspring. Epigenetic changes are transmissible from cell to cell. An epigenetic effect causes a change in gene expression without altering the sequence of DNA.... see more ›
the study of heritable modifications of chromatin (DNA or histones) that alter cell- and tissue-specific patterns of gene expression without changing the DNA sequence.... view details ›
epigenetics. the study of influences on gene expression that occur without a DNA change. evolutionary psychology. the study of the evolution of behavior and the mind, using principles of natural selection.... see details ›
Epigenetic mechanisms are molecular events that govern the way the environment regulates the genomes of organisms. Epigenetic processes lead to individual differences in appearance, physiology, cognition, and behavior—the group of traits known as the phenotype.... read more ›
What property of the DNA molecule is responsible for this migration? number of nucleotides in the fragment. Which of the following is true of the dye used to stain the fragments? It increases the contrast between the agar and the DNA fragments.... see more ›
Micropropagation, therefore, can be used to produce a large number of plants that are genetically identical to a parent plant, as well as to one another.... continue reading ›
Asexual reproduction. Costly but worth it because it can maintain genetic diversity. Sexual reproduction. type of chromosomes that are a pair of chromosomes with the same size and structure and contain the same genes. Homologous chromosomes.... view details ›
Which of the following best explains the flower colors seen in the offspring? White flower color is a trait recessive to purple flower color.... read more ›
Study Chapter 14- DNA: The Genetic Material flashcards from Brian Louie's PCC Southeast class online, or in Brainscape's iPhone or Android app. ✓ Learn faster with spaced repetition.
A. DNA polymerase IB.. A. DNA polymerase IB.. DNA ligaseD.. DNA transformation occurs when an organism incorporates DNA from the environmentD.. DNA polymerase III can only add to the 3´ end of a strandC.. The single DNA strands could not be held open. The two DNA strands are oriented in parallel (5'-to-3')C. Purines bind to pyrimidinesD.. DNA primaseD.. DNA ligase. DNA primase.d.. DNA ligase.. Telomeres are composed of specific DNA sequences, but they are not made by the replication complex. During replication of a linear DNA molecule, the leading strand can be completely replicated, but when the last RNA primer is removed from the lagging strand, DNA polymerases cannot replace it with DNA. In DNA, adenine always pairs with thymine and guanine always pairs with cyrosine, we refer to this pattern of base-pairing as complementary, which means that although the strands are not identical, they each can be used to specify the other by base-pairing if the sequence of one strand is ATGC, then the complementary strand sequence must be TACG.
Genetics is the scientific study of inherited variation. Human genetics, then, is the scientific study of inherited human variation.
But our interest in human genetics does not stop at the boundaries of the species, for what we learn about human genetic variation and its sources and transmission inevitably contributes to our understanding of genetics in general, just as the study of variation in other species informs our understanding of our own.. One benefit of studying human genetic variation is the discovery and description of the genetic contribution to many human diseases.. For example, the development of recombinant DNA techniques () rapidly transformed the study of human genetics, ultimately allowing scientists to study the detailed structure and functions of individual human genes, as well as to manipulate these genes in a variety of previously unimaginable ways.. Key among these techniques are restriction analysis and molecular recombination, which allow researchers to cut and rejoin DNA molecules in highly specific and predictable ways; amplification techniques, such as the polymerase chain reaction (PCR), which make it possible to make unlimited copies of any fragment of DNA; hybridization techniques, such as fluorescence in situ hybridization, which allow scientists to compare DNA samples from different sources and to locate specific base sequences within samples; and the automated sequencing techniques that today are allowing workers to sequence the human genome at an unprecedented rate.. To determine whether an individual possesses a mutation in the gene, a scientist first obtains a sample of DNA from the person's blood, as well as a sample of DNA that does not contain a mutation in that gene.. The human genome comprises about 3 × 10 9 base pairs of DNA, and the extent of human genetic variation is such that no two humans, save identical twins, ever have been or will be genetically identical.. As shows, modern genetic analysis of a human disease begins with mapping and cloning the associated gene or genes.. Mapping and cloning a gene can lead to strategies that reduce the risk of disease (preventive medicine); guidelines for prescribing drugs based on a person's genotype (pharmacogenomics); procedures that alter the affected gene (gene therapy); or drugs (more...). As indicates, the Human Genome Project (HGP) has significantly accelerated the pace of both the discovery of human genes and the development of new health care strategies based on a knowledge of a gene's structure and function.. The last few years of research into human genetic variation also have seen a gradual transition from a primary focus on genes associated with single-gene disorders, which are relatively rare in the human population, to an increasing focus on genes associated with multifactorial diseases.. candidate gene Gene, located in a chromosome region suspected of being involved in a disease, whose protein product suggests that it could be the disease gene in question.. Human Genome Project (HGP) International research project to map each human gene and to completely sequence human DNA.
Study Flashcards On Chapter 6 - Genetics at Cram.com. Quickly memorize the terms, phrases and much more. Cram.com makes it easy to get the grade you want!
the substrate and the repressor molecule combine and prevent transcription or productions of the product thus causing the operon to normally be ON. Match the following: genetic material that may move from plasmid to chromosome.. Viruses that transform cells and cause cancerous growth are called. Match the following: genetic material that may act as a promoter. The operon segment composed of the gene that codes for a protein repressor is called the. Match the following: Transfer of genetic material via a virus.. A sequence of bases on a gene that does not code for protein is called an. Match the following: Enzyme that copies during DNA replication. A phage often establishes a state of _________ in which a portion of the viral nucleic acid is incorporated into the bacterial chromosome or a bacterial plasmid.. Match the following: RNA that contains information for more than one protein.. The enzyme that copies DNA is called. The enzymes that can proofread replicating DNA, detect incorrect bases, excise them, and correctly replace them are. Which enzyme that fills in the spaces between the Okazaki fragments with the correct nucleotides?. DNA polymerase reads DNA. Match the following: enzyme that joins DNA fragments during replication
Molecules of DNA are composed of long chains ofa. Amino acidsb. Fatty acidsc. Monosaccharidesd. Nucleotides
spindle fibers form DefinitionTerm The phase of the cell cycle that occupies most of an average cell's life isa.. the cell enters G2 DefinitionTerm Which of the following shows the correct sequence of the cell cycle?a.. prophase DefinitionTerm Know the parts of mitosis, including prophase,metaphase, anaphase, and telophase, what they look like, and what's happening in them DefinitionTerm Know the order in which mitosis occurs (Prophase, metaphase, anaphase, telophase) DefinitionTerm As a result of mitosis, each of the two new cells produced from the parent cell during cytokinesisa.. receives exactly half the chromosomes from the parent cell DefinitionTerm Cytokinesis in plant cells involves the formation ofa.. plant cells and animal cells have different strategies for cytokinesis DefinitionTerm In eukaryotes, the cell cycle is controlled bya.. cytokinesis DefinitionTerm Normal cells become cancer cells whena.. cells do not respond to checkpoints DefinitionTerm Which of the following led to the discovery of cells?a.. a nucleus DefinitionTerm A structure within a eukaryotic cell that carries out specific activities inside the cell is called a(n)a. organelleb.. DefinitionTerm [image] The cell uses structure 3 toa.. DefinitionTerm [image] The cell shown is probably an animal cell because ita.. Golgi apparatus DefinitionTerm Know what a vesicle looks like DefinitionTerm Plant cells have a large membrane-bound compartment in which water, waste products, and nutrients can be stored.. a cell wall inside their cell membrane DefinitionTerm Bacterial cells such as Escherichia coli transfer pieces of genetic material in a process calleda.
1. Which of the following organelles would contain enzymes to detoxify alcohol & H2O2?
Definition correct answer: nucleolus Term Function of Smooth endoplasmic reticulum Definition manufactoring of carbs and lipids, forms vesicles that transport lipids and carbs to golgi body, makes peroxisomes, does alcohol detoxification Term Function of Rough ER Definition studded w/ ribosomes that carry out protein synthesis, responsible for secondary and tertiary structure of protein, taking identification markers and attaching to the proteins to make glycoproteins, makes vesicles to transport proteins to golgi body Term Function of Golgi bodies Definition collect, package and distribute molecules made in cell, responsible for production of lysosomes, Term Function of Secretory Vesicles Definition fuse w/ plasma membrane, release materials to be secreted by cells Term Function of Mitochondrion Definition produces ATP for cell, Krebs cycle happens here, inner and out membrane, between is the inner membrane space, has a matrix Term Function of Nucleus Definition commandcenter of cell, contains nucleolous Term Function of Lysosomes Definition contain enzymes that break down macro molecules and worn out cell components, come from golgi complex, recycle proteins, destroy alien materials, has acid within Term 3 Parts of the Cytoskeleton Definition 1) microtubules2) intermediate filament3) active filament (or microfilaments) Term Function of Microtubules Definition Found in cytoskeleton; tubes of protein molecules which are present in cytoplasm, centrioles, cilia and flagella, responsible for cell "swimming" like a propeller, responsible for chromosomal movement, influence/ maintain cell shape Term Function of Cytoskeleton Definition plays role in cell motion, supports organelles and cell shape (all three together) Term Function of Intermediate filaments Definition provide membrane support and cell strength, strength of your bones, organelle support, Term Function of Active filaments (or Microfilaments) Definition responsible for cell movement (cell crawling), shape in cell division, hold the membrane proteins in place, do muscle contraction, are like cartiladge, Term Ribosomes Definition responsible for primary structure of amino acid/ protein Term Peroxsisomes Definition alcohol and h2o2 detox, breaks down lipids Term cellular respiration Definition glucose turns into (2) pyruvate by glycolysis, yielding 4 atp (2 net), if oxygen present it enters the mitochondria, by process of pyruvate oxidation acetyl-coa is produced, then enters the krebs cycle, acetyl-coa binds w/ oxalacetate to produce citrate, in krebs cycle 2 carbons are lost as CO2, Term what are purines?. Definition Adenine and Guanine, have a double ring base (the ones with a hexagon and a pentagon) Term DNA - definition Definition Molecule of inheritance, filling cabinet, the nitrogen base determines which gene it will be Term DNA consits of: Definition phosphate group, 5 carbon sugar and nitrogen base Term difference between DNA and RNA Definition dna double helix, rna single strand, dna has no -OH group, while RNA does have one, RNA has uracil instead of thymine Term Frameshift mutations may be caused Definition an error in insertion or deletion of a base.. Definition (dna polymerase, proof reading enzyme, complimentary base pairing) Term Finish this statement: “When genetic information goes through the process of translation Definition 1.. Translation, takes place in cytoplasm, ending w/ polypeptide (protein), key players: ribosomes, tRNA, mRNA, Term The site where RNA polymerase attaches to the DNA molecule to start the formation of an RNA molecule is called a(n) – Definition (at the promoter site) Term A retrovirus such as HIV is distinctive in that it contins Definition contains (RNA and reverese transcriptase) Term An important role of DNA polymerase is Definition (proofreading DNA, creates phospodiester linkages- phospo gets attached to 3rd carbon) Term Nucleotides making up mature mRNA and specifying the sequence of amino acids in a polypeptide are called Definition (exons or codons or genes) Term Which of the following would be a role or roles of a ribosome Definition anything in translation works takes place in cytoplasm, ending w/ polypeptide (protein), key players: ribosomes, tRNA, mRNA, Term Which of the following occurs inside the nucleus of a cell as opposed to the cytoplasm of the cell?. Definition (replication and transcripton, he may give a event that happens at replication and/or transcription) Term The site on the ribosome where the initiator tRNA matches up with the start codon is called the Definition p-side) Term Which of the following is part of the structure of a DNA Nucleotide?. Definition (the ribosome is reading mRNA (the message codons) Term Match the function with the correct term.DNA Helicase Definition (unwinds the double helix, breaks h-bonds) Term Match the function with the correct term.DNA Ligase Definition attach okisaki fragments, creates the phosphate to the 3rd carbon on suagr Term RNA Polymerase Match the function with the correct term.. Definition (binds to the promoter region and making mRNA) Term d. DNA Polymerase Definition proof reading Term Using the following DNA sequences representing the coding strand and the attached table, answer the following questions related to Cystic Fibrosis.. Definition (he will give us the coding strand, go over lab again take coding strand and translate into RNA) Term what are genetic mutations?. Term In vivo Definition process, test, or procedure is perforned, measured, or observed within the living organism Term ex vivo (in vitro) Definition process, test, or procedure is perforned, measured, or observed outside the living organism Term chromosomal mutations Definition Translocation: The joining of a fragmented chromosome to a non-homologous chromosome is a translocation.. Definition a chromosome Term what is a chromosome?. Definition a chromosome is dna wrapped around histones Term whats within dna?. Term DNA to RNA to Protein Definition Just remember!!
Study Flashcards On 560A Pathophysiology at Cram.com. Quickly memorize the terms, phrases and much more. Cram.com makes it easy to get the grade you want!
D. Chromosomes of daughter cells (resulting from cell division) are genetically different from the parent cell (precursor cell).. A disease in which the principal manifestation is an abnormal growth of cells leading to formation of tumors is called a __________ disease.. B. the patient has been infected with HIV; her blood, vaginal secretions, and, if she becomes pregnant, breast milk can infect other persons.. B. the patient has been infected with HIV; her blood, vaginal secretions, and, if she becomes pregnant, breast milk can infect other persons.. D. The person has been infected; however, the infection is probably mild, and he is unlikely to infect other persons by heterosexual intercourse.. An elevated CRP test in an otherwise normal person without evidence of an infection predicts an increased long-term risk of cardiovascular disease by identifying the inflammatory changes associated with accumulation of macrophages and other inflammatory cells in an unstable atheromatous coronary artery plaque.. Many blood coagulation factors are produced in the liver, and their concentrations in the blood are reduced in patients with liver disease.. B. Clumps of sickled red cells block blood vessels when blood oxygen content is reduced, which impedes blood flow to vital organs.. Because of the serious complications that can occur in some infected persons, the Centers for Disease Control and Prevention recommends that certain groups of high-risk individuals be tested for asymptomatic HCV infection.
In this page, you can find CBSE Class 10 Science Chapter 8 Extra Questions and Answers How do Organisms Reproduce Pdf free download, NCERT Extra Questions for Class 10 Science will make your practice complete.
Answer:. In animals, male gametes are called sperms while female gametes are called eggs or ova.. Answer:. Unisexual: In most of the animals including humans, male and female reproductive organs are in different individuals.. Explain the roles of gametes and zygote in sexual reproduction,. Answer:. The two fusing gametes posses characters of their parents in their DNA.. Answer:. Asexual reproduction does not involve genetic fusion while sexual reproduction involves fusion of male and female gametes to form a zygote.. Answer:. In an angiosperm, the male reproductive part is androecium or stamen and the female reproductive part is the gynoecium or carpel.. Answer:. Asexual reproduction is the mode of reproduction used by single organisms or parents without gamete production or fusion.. Answer:. Two types of mammalian gametes are sperm and ovum or egg. . Sperms are motile and are produced by male individuals whereas ova or eggs are non-motile and produced by female individuals.. (i) Write the names of those parts of a flower which serve the same function as the following do in the animals:. (a) Testis. (b) Sperm. (c) Ovary. (d) Egg. (ii) State the function of flowers in the flowering plants:. Answer:. (i) (a) Testis – anther. (b) Sperm – pollen grains. (c) Ovary – ovary. (d) Egg – ovum. Answer:. Question 57.