Match the following sites of modifications on histones given in Column I with their effect on transcription given in Column II.

COLUMN I                                               COLUMN II

1) Methylation of H3K36 in transcribed region               a) Activation

2) Ubiquitinylation of H2BK120 in mammals                b) Repression

3) Phosphorylation of H2AT120                                    c) Elongation

4) Hypoacetylated Lysine

5) Acetylation of H4K8

#Question id: 3594

#Unit 8. Inheritance Biology

following different cross allowed and their respective phenotype.

Which of the following observation conclude correct mode of dominance?

#Question id: 3595

#Unit 8. Inheritance Biology

Ranch mink with the dark gray coat color known as Aleutian is homozygous recessive aa. Genotypes AA and Aa have the standard deep brown color. A mating of Aa  X Aa produces  four  pups. What is the probability of a perfect 3 : 1 distribution of standard to Aleutian?

#Question id: 3596

#Unit 8. Inheritance Biology

Which of the following correct regarding test cross?

a) A testcross tests reveals the genotype of the individual

b)  Test cross detect linkage between gene

c) Same genotype and phenotype ratio present in test cross progeny

d) Phenotype ratio of test cross used to determine mode of inheritance either complete dominance or incomplete dominance

#Question id: 3597

#Unit 8. Inheritance Biology

In a family of four children, what is the probability of obtaining the following numbers of boys and girls?

(a) All boys(b) All children of the same sex(c) two girls and two boy(d) three boys and one girls

#Question id: 3598

#Unit 8. Inheritance Biology

Mendel crossed, round tall pea plants RRTT with wrinkle dwarf rrtt. The F1 plants were all round tall. These F1 plants were selfing, following genotype are selected from F2 generation

A- RrTT       B- RrTt        C- RRtt 

Which of the following decreasing frequency of this genotype?

#Question id: 3599

#Unit 8. Inheritance Biology

In cats, blood type A results from an allele (A) that is dominant over an allele (B) that produces blood type B. There is no O blood type, following two cross are

a. blood type A X blood type B = 4 kittens with blood type A, 4 with blood type B

b. blood type A X blood type A = 6 kittens with blood type A, 3 kittens with blood type B. What are genotype of parent