An allohexaploidy contains ______.

(a)

Six different genomes

(b)

Six copies of three different genomes

(c)

Two copies of three different genomes

(d)

Six copies of one genome

Genes G S L H are located on same chromosome. The recombination percentage is between L and G is 15%, S and L is 50%, H and S are 20%. The correct order of genes is _____.

(a)

GHSL

(b)

SHGL

(c)

SGHL

(d)

HSLG

Changing the codon AGC to AGA represents _______.

(a)

missense mutation

(b)

nonsense mutation

(c)

frameshift mutation

(d)

deletion mutation

How many map units separate two alleles A and B if the recombination frequency is 0.09?

(a)

900 cM

(b)

90 cM

(c)

9 cM

(d)

0.9 cM

The following sequence represents the location of genes in a chromosome. A - B - C - M - R - S - y -Z. Which of the gene pairs will have least chance of getting inherited together?

(a)

A and M

(b)

Sand Y

(c)

M and Z

(d)

A and Y

Incomplete linkage was reported by Hutchinson in ___________

(a)

Drosophila

(b)

Maize

(c)

Neurospora

(d)

Lathyrus odoratus

Pick out the co-mutagen from the following:

(a)

Eosin

(b)

Mustard gas

(c)

Ascorbic acid

(d)

Nitrous acid

T. H. Morgan

(1)

Mutation theory

Hugo de Vries

(2)

2n - 1

Monosomy

(3)

2n - 2

Nullisomy

(4)

Sex linkage in Drosophila

The term crossing over was coined by_________________

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T.H. Morgan

The unit of distance in genetic map is called as_____________

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Map unit or Centimorgan

The "2n" condition of Carica papaya is________

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36

The first man made cereal is___________

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Triticale

What is the difference between missense and nonsense mutation?

What are linked genes?

Define terminalization.

What is genetic mapping?

State Coupling and Repulsion theory.

What are the three types of synapsis? (or) Give the types of Synapsis.

List any three characteristic features of multiple allele.

What is frame shift mutation?

What is gene mapping? Write its uses

Draw the diagram of different types of aneuploidy.

Mention the name of man-made cereal. How it is formed?