BIO301 Grand Quiz Mega File Updated by Asmat Niazi

Grand Quize Mega File · BIO301 · MCQS

Q1. Primary oocyte produces polar bodies …………………

1. 1
2. 2
3. 3
4. 4

2.

Which two alleles are called co-dominant one another and are expressed when present?

1. Allele A and Allele B
2. Allele A and Allele O
3. Allele B and Allele O
4. Allele A and Allele i

Q3. During recessive epistasis ,which color of pigeon is produced by recessive red gene with or without spread?

1. Ash red
2. Blue
3. brown
4. Any color

(c)Chromosomes condense and become visible

4:

The DNA between nucleosome is called as linker DNA .Its length is ………..

(a)20-80 bp

(b) 10-20 bp

(c)20 -40 bp

(d) 20-60 bp

5:Mendel determined the segregation of alleles at single gene locus based

on …..

(a) Monohybrid

(b) Dihybrid

(c) Trihybrid

6:

Darker bands

are generally found near the centromere or on the ends (telomeres) of chromosomes. The position of the dark –staining are ……….or……..

(a)Heterochromatic region ,heterochromatin

(b)Euchromatin region,euchromatin

(c) Euchromatin region, heterochromatin

(d)Heterochromatin region, euchromatin

7:During metaphase mitosis chromosome

(a) Undergo coiling

(b) Line up at the equator (b) 10000 (d) Break the nuclear envelope

8:During stage telophase 1 ,chromosomes are……

(a) Haploid (b) Diploid (c) Haploid and Diploid (d) Polyploid

9:The law of independent assortment with dihybrid cross gives genotypic ratio in F2 as:

(a) 1:1 (b) 3:1 (c) 1:2:1 (d) 9:3:3:1

10:Who is considered “The Father of Genetics”?

1. Charles Darwin
2. Gregor Johann Mendel
3. James Watson
4. Francis Crick

11:In …….centromere splits into two parts while in ……it does not split.

(a)Mitosis, Meiosis I

(b)Meiosis I ,Mitosis

(c)Mitosis, Meiosis II

(d)Meiosis II,Mitosis

12:When one phenotypic trait is determined by multiple alleles then it is called as ……

(a) Epistasis

(b) Pleiotropic

(c) Polygenic inheritance

(d) All

13:How many numbers of genes are present in drosophila?

1. 5800