13. D
Igf2 only expressed if inherited from father - maternal copy is
imprinted
H19 gene only expressed if inherited from mother - paternal copy is
imprinted
14. Monohybrid cross
15. 9:3:3:1
Independent assortment it gives this ratio 9:3:3:1
13) In genomic imprinting in mammals, a chromosome provided by the egg will express the H19...
Could you please provide the best answer for following MCQs. Thank you. Question 1 The imprinting control region is best defined as a promoter that regulates the expression of MeCP2 a sequence that can be methylated or unmethylated to control the expression of one or more genes by regulating promoter-enhancer interactions a sequence that when unmethylated can bind RNA polymerase II to induce promoter activation an enhancer that is inhibited when methylated Question 2 Imprinting is best described as a...
Question 12 only. Punnett's square analysis for the parental cross r Rr Rr 9) If we used the above offspring (F1) in a new cross, what would be the genotypes and phenotypes of the offspring of the Fz generation? 10) What is the genotypic ratio of the F2 generation? 11) What is the phenotypic ratio of the F2 generation? 12) What would be the genotypic and phenotypic ratios of offspring from a cross between a homozygous recessive parent (r r)...
Bio215 Problem Questions Hassanaton MULTIPLE CHOICE 1) Pea plants were particularly well suited for use in Mendel's breeding experiments for all of the following reasons exep that ) peas show easily observed variations in a number of characters, such as pea shape and flower color. B) it is possible to completely control matings between different per plants. C) it is possible to obtain large numbers of progeny from any given cross. D) peas have an unusually long generation time. E)...
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
Which of the following is TRUE of incomplete penetrance? Select one: a. Epistatic interactions can result in incomplete penetrance in some cases. b. Environmental factors do not influence penetrance. c. Incomplete penetrance implies that some individuals will experience less severe forms of disease, such as cancer or Alzheimer's. d. Incomplete penetrance is never observed with Huntington's disease e. Incomplete penetrance refers to cases in which individuals developing a particular disease (e.g., cancer or Alzheimer's) lack the typical genotype for this...
Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele d. genotype e. heterozygous f. homozygote g. phenotype h. recessive allele i. sex chromosomes 1. ________________ genetic make-up 2. ________________ how genetic make-up is expressed 3. ________________ chromosomes that dictate most body characteristics 4. ________________ alternative forms of the same gene 5. ___________an individual bearing two alleles that are the same for a particular trait 6. ________________ an allele that is expressed, whether in...
2. A dominant allele H reduces the number of body bristles that Drosophila flies have, giving rise to a “hairless” phenotype. In the homozygous condition, H is lethal. An independently assorting dominant allele S has no effect on bristle number except in the presence of H, in which case a single dose of S suppresses the hairless phenotype, thus restoring the "hairy" phenotype. However, S also is lethal in the homozygous (S/S) condition. What ratio of hairy to hairless flies...