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Inheritance in Living Things

Total questions: 10

Worksheet time: 8mins

Name
Class
Date
1.

Who do we obtain our genes from?

a)

plants

b)

our parents

c)

the sun

d)

the evolution

2.

What does the term "homozygous alleles" mean?

a)

both alleles are different

b)

the gene is recessive

c)

the gene is dominant

d)

both alleles are the same

3.

What is a genotype?

a)

The combination of alleles (written in letters)

b)

The physical feature

c)

The physical features of the parents

d)

The percentage of children having the trait expressed

4.

If a gene is recessive, it means

a)

it will dominate

b)

it needs two equal alles to be expressed

c)

it won't pass

d)

GONDO ES LA MEJOR SKERE

5.

What does the term "Heterozygous alleles" mean?

a)

Both alleles are the same

b)

the trait is recessive

c)

Both alleles are different

6.

Having dimples is a recessive trait. If an homozygous recessive (dd) mates with an heterozygous dominant (DD), what will be te genotype of the 4 children?

a)

dd

b)

DD

c)

Dd

d)

I don't know

7.

If a trait is dominant it can be expressed when:

a)

Just one allele is dominant

b)

both alleles are recessive

c)

One or both alleles are dominant

8.

What are alleles?

a)

Chromosomes

b)

Different expressions of the same gene

c)

Different alleles of the same gene

d)

dioxyrebonucleic acid

9.

If a recessive homosygous (aa) mated with a dominant homozygous (AA) and had 4 kids, what would be the ratio of the children?

a)

50% and 50%

b)

75% and 25%

c)

40% and 60%

d)

100%

10.

What is the phenotype?

a)

The percentage of children having the trait expressed

b)

The combination of alleles

c)

The chance of having children with that feature

d)

The physical feature