Deviation from Mendelian Genetic Principles MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Deviation from Mendelian Genetic Principles, a fundamental topic in the field of Cytogenetics. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Deviation from Mendelian Genetic Principles MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Deviation from Mendelian Genetic Principles mcq questions that explore various aspects of Deviation from Mendelian Genetic Principles problems. Each MCQ is crafted to challenge your understanding of Deviation from Mendelian Genetic Principles principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Cytogenetics tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Deviation from Mendelian Genetic Principles MCQs are your pathway to success in mastering this essential Cytogenetics topic.

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Deviation from Mendelian Genetic Principles MCQs | Page 5 of 8

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Q41.
You cross two heterozygous disc shaped squash. What will be the ratio obtained?

a.

1:2:1

b.

3:1

c.

9:3:3:1

d.

9:6:1

Discuss
Answer: (d).9:6:1
Q42.
The cross between a true breeding sphere shaped and a long shaped squash gives 30 sphere squash in F2. What is the total number of expected progeny?

a.

30

b.

40

c.

50

d.

60

Discuss
Answer: (b).40
Q43.
In case of two gene interaction, the gene which is masking the expression of another is called_____________ and the gene whose expression is masked is called_______________

a.

Dominant, recessive

b.

Recessive, dominant

c.

Epistatic, hypostatic

d.

Hypostatic, Epistatic

Discuss
Answer: (c).Epistatic, hypostatic
Q44.
Epistasis is the interaction between_____________ genes.

a.

2

b.

4

c.

8

d.

16

Discuss
Answer: (a).2
Q45.
Epistasis is the interaction between two genes producing a new phenotype.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q46.
What is the dihybrid phenotypic ratio for recessive epistasis in an F22 generation?

a.

9:3:3:1

b.

9:6:1

c.

9:3:4:1

d.

9:3:4

Discuss
Answer: (d).9:3:4
Q47.
In mouse agouti locus is hypostatic to pigment development locus. If C is for pigment development, and A is for agouti, and recessive alleles in agouti locus gives black colour and recessive in pigment locus gives white colour, what will be the phenotype of A/- c/c and a/a c/c.

a.

Agouti, white

b.

Black, agouti

c.

Black, black

d.

White, white

Discuss
Answer: (d).White, white
Q48.
The cross between a white mouse and a black mouse _______________

a.

Can’t give a Black mouse

b.

Can’t give a White mouse

c.

Can’t give a Agouti mouse

d.

Can give all combinations

Discuss
Answer: (d).Can give all combinations
Q49.
Which one of the following has dominant allele in both gene locus?

a.

Black

b.

Albino

c.

Agouti

d.

White

Discuss
Answer: (c).Agouti
Q50.
Coat colour in Labrador retriever is controlled by epistasis. B specifies black pigment, b is for brown pigment (recessive) and E locus determines the expression of B locus. Which one of the following is wrong?

a.

bb EE gives yellow

b.

Bb EE gives black

c.

bb Ee gives brown

d.

BB EE gives black

Discuss
Answer: (a).bb EE gives yellow
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