Test: Inheritance of Two Genes (NCERT)

Question 1

"When two pairs of traits are combined in a hybrid, segregation of one pair of characters is independent of the other pair of characters is independent of the other pair of characters." The statement is independent of the other pair of characters. The statement explains which of the following laws/principles of Mendel?

Accepted Answer

Law of independent assortment

Answer

Principle of paired factors

Answer

Principle of dominance

Answer

Law of segregation

Question 2

Match column -I with column-ii and select the correct option from the codes given below

Accepted Answer

A - (iii), B - (iv), C - (i), D - (v)

Answer

A - (i), B - (iv), C - (ii), D - (v)

Answer

A - (i), B - (ii), C - (iii), D - (v)

Answer

A - (iii), B - (iv), C - (i), D - (ii)

Question 3

In Mendelian dihybrid cross, when heterozygous Round Yellow are self crossed, Round Green offsprings are represented by the genotype

Accepted Answer

Rryy, RRyy

Answer

RrYy, RrYY, RRYy

Answer

Rryy, Rryy, rryy

Answer

rrYy, rrYY

Question 4

A man having the genotype EEFfGgHH can produce P number of genetically different sperms, and a woman of genotype liLLMmNn can generate Q number of genetically different eggs. Determine the values P and Q.

Accepted Answer

P = 4,Q = 8

Answer

P = 4, Q = 4

Answer

P = 8, Q = 4

Answer

P = 8,Q = 8

Question 5

When a cross is made between a tall plant with yellow seeds (Tt Yy) and a tall plant with green seeds (Tt yy), what is true regarding the proportions of phenotypes of the offsprings in F₁ generation?

Accepted Answer

a

Answer

b

Answer

c

Answer

d

Question 6

Refer the given statements and select the correct option,
(i) Percentage of homozygous dominant individuals obtained by selfing Aa individuals is 25%.
(ii) Types of genetically different gametes produced by genotype AABbcc are 2.
(iii) Phenotypic ratio of monohybrid F₂ progeny in case of Mirabilis jalapa is 3:1.

Accepted Answer

Statements (i) and (ii) are true, but statement (iii) is false

Answer

All the statements are true

Answer

Statements (i) and (iii) are true, but statement (ii) is false

Answer

Statements (ii) and (iii) are true, but statement (i) is false

Question 7

Law of independent assortment can be explained with the help of

Accepted Answer

dihybrid cross

Answer

test cross

Answer

back cross

Answer

monohybrid cross

Question 8

The percentage of ab gamete produced by AaBb parent will be

Accepted Answer

25%

Answer

50%

Answer

75%

Answer

12.5%

Question 9

The given Punnett's square represents the pattern of inheritance in a dihybrid cross where yellow (Y) and round (R) seed condition is dominant over white (y) and wrinkled (r) seed condition.

A plant of type 'H' will produce seeds with the genotype identical to seeds produced by the plants of

Accepted Answer

Type N

Answer

Type M

Answer

Type J

Answer

Type P

Question 10

In maize, coloured endosperm (C) is dominant over colourless (c); and full endosperm (R) is dominant over shrunken (r). When a dihybrid of F₁generation were test crossed, it produced four phenotypes in the following percentage:

Coloured full 48%, Coloured shrunken 5%,
Colourless full 7%, and Colourless shrunken 40%.

From this data, what will be the distance between two non-allelic genes?

Accepted Answer

12 units

Answer

48 units

Answer

5 units

Answer

7 units

Question 11

What proportion of the offsprings obtained from cross AABBCC x AaBbCc will be completely heterozygous for all the genes segregated independently?

Accepted Answer

1/8

Answer

1/4

Answer

1/2

Answer

1/16

Question 12

True-breeding red-eyed Drosophila flies with plain thoraxes were crossed with pink-eyed flies with striped thoraxes

Red eye plain thorax × Pink eye striped thorax

The F₁ flies were then test crossed against the double recessive.
The following F₂ generation resulted from the cross:

What percentage number of recombinants resulted from the test cross ?

Accepted Answer

14

Answer

12

Answer

16

Answer

28

Question 13

Mendel law of independent assortment does not hold true for the genes that are located closely on

Accepted Answer

same chromosome

Answer

non-homologous chromosomes

Answer

X - chromosome

Answer

autosomes

Question 14

Read the given paragraph to answer
In a certain plant, yellow fruit colour (Y) is dominant to green fruit colour (y) and round shape (R) is dominant to oval shape (r). The two genes involved are located on different chromosomes.

Which of the following will result when plant YyRr is self-pollinated?

Accepted Answer

9:3:3:1 ratio of phenotypes only

Answer

9:3:3:1 ratio of genotypes only

Answer

1:1:1:1 ratio of phenotypes only

Answer

1:1:1:1 ratio of phenotypes and genotypes

Question 15

Read the given paragraph to answer
In a certain plant, yellow fruit colour (Y) is dominant to green fruit colour (y) and round shape (R) is dominant to oval shape (r). The two genes involved are located on different chromosomes.

Which of the following is correct for the condition when plant YyRr is back crossed with the double recessive parent?

Accepted Answer

1:1:1:1 ratio of phenotypes and genotypes

Answer

9:3:3:1 ratio of phenotypes only

Answer

9:3:3:1 ratio of genotypes only

Answer

1:1:1:1 ratio of phenotypes only

Inheritance of Two Genes (NCERT) - Free MCQ Practice Test with solutions,

MCQ Practice Test & Solutions: Test: Inheritance of Two Genes (NCERT) (15 Questions)

Match column -I with column-ii and select the correct option from the codes given below

In Mendelian dihybrid cross, when heterozygous Round Yellow are self crossed, Round Green offsprings are represented by the genotype

A man having the genotype EEFfGgHH can produce P number of genetically different sperms, and a woman of genotype liLLMmNn can generate Q number of genetically different eggs. Determine the values P and Q.

When a cross is made between a tall plant with yellow seeds (Tt Yy) and a tall plant with green seeds (Tt yy), what is true regarding the proportions of phenotypes of the offsprings in F₁ generation?

Law of independent assortment can be explained with the help of

The percentage of ab gamete produced by AaBb parent will be

The given Punnett's square represents the pattern of inheritance in a dihybrid cross where yellow (Y) and round (R) seed condition is dominant over white (y) and wrinkled (r) seed condition.
A plant of type 'H' will produce seeds with the genotype identical to seeds produced by the plants of

What proportion of the offsprings obtained from cross AABBCC x AaBbCc will be completely heterozygous for all the genes segregated independently?

Mendel law of independent assortment does not hold true for the genes that are located closely on

Read the given paragraph to answer
In a certain plant, yellow fruit colour (Y) is dominant to green fruit colour (y) and round shape (R) is dominant to oval shape (r). The two genes involved are located on different chromosomes.
Which of the following will result when plant YyRr is self-pollinated?

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Inheritance of Two Genes (NCERT) - Free MCQ Practice Test with solutions,

MCQ Practice Test & Solutions: Test: Inheritance of Two Genes (NCERT) (15 Questions)

Match column -I with column-ii and select the correct option from the codes given below

In Mendelian dihybrid cross, when heterozygous Round Yellow are self crossed, Round Green offsprings are represented by the genotype

A man having the genotype EEFfGgHH can produce P number of genetically different sperms, and a woman of genotype liLLMmNn can generate Q number of genetically different eggs. Determine the values P and Q.

When a cross is made between a tall plant with yellow seeds (Tt Yy) and a tall plant with green seeds (Tt yy), what is true regarding the proportions of phenotypes of the offsprings in F1 generation?

Law of independent assortment can be explained with the help of

The percentage of ab gamete produced by AaBb parent will be

The given Punnett's square represents the pattern of inheritance in a dihybrid cross where yellow (Y) and round (R) seed condition is dominant over white (y) and wrinkled (r) seed condition.A plant of type 'H' will produce seeds with the genotype identical to seeds produced by the plants of

What proportion of the offsprings obtained from cross AABBCC x AaBbCc will be completely heterozygous for all the genes segregated independently?

Mendel law of independent assortment does not hold true for the genes that are located closely on

Read the given paragraph to answer In a certain plant, yellow fruit colour (Y) is dominant to green fruit colour (y) and round shape (R) is dominant to oval shape (r). The two genes involved are located on different chromosomes.Which of the following will result when plant YyRr is self-pollinated?

Biology Class 12

Biology Class 12

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About this NEET Practice Test

Explore more NEET Study Resources

When a cross is made between a tall plant with yellow seeds (Tt Yy) and a tall plant with green seeds (Tt yy), what is true regarding the proportions of phenotypes of the offsprings in F₁ generation?

The given Punnett's square represents the pattern of inheritance in a dihybrid cross where yellow (Y) and round (R) seed condition is dominant over white (y) and wrinkled (r) seed condition.
A plant of type 'H' will produce seeds with the genotype identical to seeds produced by the plants of

Read the given paragraph to answer
In a certain plant, yellow fruit colour (Y) is dominant to green fruit colour (y) and round shape (R) is dominant to oval shape (r). The two genes involved are located on different chromosomes.
Which of the following will result when plant YyRr is self-pollinated?