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HEREDITY ASSERTION REASONING

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

A: Dominant allele is an allele whose phenotype expresses even in the presence of another allele of that gene.

R: It is represented by a capital letter.

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

2.

A: The sex of the children will be determined by chromosome from father.

R: A human male has one X and one Y chromosome.

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

3.

A: Mutation is sudden change in genetic material.

R: Variation is useful for the survival of species over time.

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

4.

A: Changes in non reproductive tissues cannot be passed on the DNA of the germ cells

R: Inherited traits include the traits developed during the life time of an individual.

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

5.

A: Mendel chose a number of varieties of garden pea as plant material for his experiments

R: Garden pea has well defined characters and was bisexual.

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

6.

A: Chromosomes are known as hereditary vehicles.

R: The chromosomes are capable of self reproduction and maintaining morphological and physiological properties through successive generations.

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

7.

A: The sex of the child is determined by the mother

R: Humans have two types of sex chromosomes XX and XY

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

8.

A: Variations are seen in offspring produced by asexual reproduction

R: DNA molecule generated by replication is exactly identical to original DNA

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

9.

A: The genetic complement of an organism is called genotype

R: Genotype is the type of hereditary properties of an organism.

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE

10.

A: A geneticist crossed two pea plants and got 50% tall and 50% dwarf in the progeny.

R: One plant was heterozygous tall and other was dwarf

a)

A IS TRUE AND R IS THE CORRECT EXPLANATION FOR A

b)

A IS TRUE AND R IS NOT THE CORRECT EXPLANATION FOR A

c)

A IS TRUE AND R IS FALSE

d)

A IS FALSE AND R IS TRUE