Homework Answers
True.
We can use the mutation to find the influence of gene on its phenotype. Because when there is found mutation in a single gene, then this leads to inhibit the activity of normal wild type gene and in this way, we can find the effect of gene on the phenotype of the plant. In this way, we can use mutation to find the effect of other genes on plants phenotype.
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13. Mutations in the plant Arabidopsis were used to detect the influence of multiple genes on...
3. (2pts) A group of researchers working with Arabidopsis (a small weedy plant that is widely...
3. (2pts) A group of researchers working with Arabidopsis (a small weedy plant that is widely used as model organism by plant geneticists) is isolating new mutations that cause extra petals to be formed on the flowers. They isolate six plants from different mutagenesis experiments that all show the desired phenotype. They then establish true breeding strains A-F by self-fertilizing and further inbreeding the plants. They also established that the mutations in the strains were recessive, and gave a 3:1...
Which of the following statements is false? Epistasis involves interactions among different genes, to influence phenotype....
Which of the following statements is false? Epistasis involves interactions among different genes, to influence phenotype. When an allele is dominant, the heterozygous combination is the same phenotypically as one of the homozygotes. Dominance refers to the form of expression of a gene in relation to its allele (or alleles). Epistasis involves interactions between alleles of a single gene.
Epigenetics changes frequently occur through Multiple Choice О mutations to PRB mutations to p53 О mutations...
Epigenetics changes frequently occur through Multiple Choice О mutations to PRB mutations to p53 О mutations to ras mutations to chromatin modifying proteins Place each label in the correct column. Some labels may used more than once, some only once, and some not at all. Amniocentesis Performed on cells harvested from embryo Chorionic villus sampling Preimplantation genetic diagnosis Performed on cells harvested from amniotic fluid Performed before implantation of embryo Performed at 10- 12th weeks of pregnancy Performed on fetal...
9. Some (many) traits are polygenic, meaning that multiple genes influence the phenotype. Eye color is...
9. Some (many) traits are polygenic, meaning that multiple genes influence the phenotype. Eye color is polygenic. It actually involves several genes, but there are two that have a major role. Polygenic traits are also incompletely dominant. So assume for eye color that there are two genes, B and C. For each, the dominant allele causes the eye to have more pigment, and be darker The two genes are on different chromosomes, and inherit independently. If an individual was Bb...
2. Three genes and their mutations are found on the third chromosome in fruit fly Drosophila...
2. Three genes and their mutations are found on the third chromosome in fruit fly Drosophila melanogaster. Of these three genes, scarlet eyes (st) are recessive to red eyes (st"), cbony body color (eb) is recessive to gray body color (eb"), and spineless (ss), the st presence of small bristles, is recessive to normal bristles (ss). You eb SS were given a heterozygous fly (st'st eb'eb ss'ss) and were asked to eb ss design an experiment to map the distance...
What term is used to express the idea that several genes exert influence over the same...
What term is used to express the idea that several genes exert influence over the same characteristic? Select one: a. terminal interaction b. transformation c. co-adhesion d. coextension e. gene interaction A condition in which one gene pair masks the expression of a nonallelic gene pair is called ________. Select one: a. recessiveness b. dominance c. codominance d. epistasis e. additive alleles One result of X-linkage is a crisscross pattern of inheritance in which sons express recessive genes of their...
please solve qs12-23 and include explanations thanks A wild-type trihybrid soybean plant Phenotype Number is crossed...
please solve qs12-23 and include explanations thanks
A wild-type trihybrid soybean plant Phenotype Number is crossed to a pure-breeding Pale 648 soybean plant with the recessive Pale, oval phenotypes pale leaf (), oval seed Pale, short 10 (r), and short height (t). The results Pale, oval, short 102 of the three-point test cross are Oval shown in the table. Traits not listed Oval, short 618 are wild-type. Short 84 Wild type 98 1. True False The phenotypes 1630 listed in...
QUESTION 13 Gene testing is most often designed to detect ploidy. DNA mutations. RFLPs. Restriction sites....
QUESTION 13 Gene testing is most often designed to detect ploidy. DNA mutations. RFLPs. Restriction sites. aberrant proteins. 1.11000 points QUESTION 14 When DNA analysis and testing is conducted in adults, what type of cells are typically used? red blood cells skin cells liver cells white blood cells muscle fiber cells QUESTION 15 Where are fetal cells typically obtained from? amniotic fluid fetal heart cells fetal brain placenta vaginal discharge
11-16. Three genes A, R. and T are linked. Als a dominant allele for red leaves,...
11-16. Three genes A, R. and T are linked. Als a dominant allele for red leaves, while the recessive phenotype is green. T is the dominant allele for all plants, while gives dwarf plants. R is the dominant allele for ragged leaf margins while gives smooth leaf margins. Questions 11-16 contain statements about these genes-answer whether each statement is true or false. Consult the accompanying diagram which represents the chromosomes in the heterorygous parent of a test cross while answering...
True and False A. Multiple independently assorting genes and their alleles can interact to control one...
True and False A. Multiple independently assorting genes and their alleles can interact to control one train. B. A single gene and its alleles interact to yield modified mendelian phenotypic ratios C. Novel phenotypes may be produced as a result of the interaction of multiple genes D. Gene interaction ultimately results from the interaction of gene products.
3. (2pts) A group of researchers working with Arabidopsis (a small weedy plant that is widely used as model organism by plant geneticists) is isolating new mutations that cause extra petals to be formed on the flowers. They isolate six plants from different mutagenesis experiments that all show the desired phenotype. They then establish true breeding strains A-F by self-fertilizing and further inbreeding the plants. They also established that the mutations in the strains were recessive, and gave a 3:1...
Which of the following statements is false? Epistasis involves interactions among different genes, to influence phenotype. When an allele is dominant, the heterozygous combination is the same phenotypically as one of the homozygotes. Dominance refers to the form of expression of a gene in relation to its allele (or alleles). Epistasis involves interactions between alleles of a single gene.
Epigenetics changes frequently occur through Multiple Choice О mutations to PRB mutations to p53 О mutations to ras mutations to chromatin modifying proteins Place each label in the correct column. Some labels may used more than once, some only once, and some not at all. Amniocentesis Performed on cells harvested from embryo Chorionic villus sampling Preimplantation genetic diagnosis Performed on cells harvested from amniotic fluid Performed before implantation of embryo Performed at 10- 12th weeks of pregnancy Performed on fetal...
9. Some (many) traits are polygenic, meaning that multiple genes influence the phenotype. Eye color is polygenic. It actually involves several genes, but there are two that have a major role. Polygenic traits are also incompletely dominant. So assume for eye color that there are two genes, B and C. For each, the dominant allele causes the eye to have more pigment, and be darker The two genes are on different chromosomes, and inherit independently. If an individual was Bb...
2. Three genes and their mutations are found on the third chromosome in fruit fly Drosophila melanogaster. Of these three genes, scarlet eyes (st) are recessive to red eyes (st"), cbony body color (eb) is recessive to gray body color (eb"), and spineless (ss), the st presence of small bristles, is recessive to normal bristles (ss). You eb SS were given a heterozygous fly (st'st eb'eb ss'ss) and were asked to eb ss design an experiment to map the distance...
please solve qs12-23 and include explanations thanks
A wild-type trihybrid soybean plant Phenotype Number is crossed to a pure-breeding Pale 648 soybean plant with the recessive Pale, oval phenotypes pale leaf (), oval seed Pale, short 10 (r), and short height (t). The results Pale, oval, short 102 of the three-point test cross are Oval shown in the table. Traits not listed Oval, short 618 are wild-type. Short 84 Wild type 98 1. True False The phenotypes 1630 listed in...
11-16. Three genes A, R. and T are linked. Als a dominant allele for red leaves, while the recessive phenotype is green. T is the dominant allele for all plants, while gives dwarf plants. R is the dominant allele for ragged leaf margins while gives smooth leaf margins. Questions 11-16 contain statements about these genes-answer whether each statement is true or false. Consult the accompanying diagram which represents the chromosomes in the heterorygous parent of a test cross while answering...
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