Inheritance - Assessment

1.

Multiple Select

30 sec

1 pt

What is the definition of the phenotype?

The physical traits of an organism

The genetic makeup of an organism

The letters eg, Aa

How the genotype is expressed.

2.

Multiple Choice

30 sec

1 pt

Which answer includes the dominant homozygous genotype?

AA

Aa

aa

3.

Multiple Choice

30 sec

1 pt

Which answer contains the heterozygous genotype?

AA

aa

Aa

4.

Multiple Choice

30 sec

1 pt

What is the definition of an allele?

An allele is a variety of a gene.

An allele is the genetic makeup of an organism

An allele is another word for a gene.

5.

Multiple Choice

30 sec

1 pt

An allele whose trait only shows up when no dominant allele is present.

hidden allele

dominant allele

recessive allele

present allele

6.

Multiple Choice

30 sec

1 pt

What is the definition of Homozygous?

When one allele is dominant and one is recessive

When an individual has two sets of the same allele.

when it is neither dominant or recessive

7.

Multiple Select

30 sec

1 pt

A gene is...

A heritable factor that controls a specific characteristic

An allele

A length of DNA which occupies a specific position on the chromosome

8.

Multiple Choice

30 sec

1 pt

What is the law of dominance?

One of the pairs of inherited traits will be dominant and the others recessive unless both the factors are recessive.

There will always be a dominant allele.

One of the pairs of inherited traits will be dominant and the others recessive.

9.

Multiple Choice

30 sec

1 pt

What is the definition of a genotype?

The genetic makeup of an organism

The physical traits of an organism.

When one allele is dominant and one allele is recessive.

When both alleles are dominant.

10.

Multiple Choice

30 sec

1 pt

What is the definition of heterozygous?

When both alleles are dominant

When one allele is dominant and one is recessive.

When both alleles are recessive.

When one gene is dominant and one is recessive.

11.

Multiple Choice

2 mins

1 pt

In dogs, the allele for black fur (B) is dominant over the allele for white fur (b). A breeder breeds a heterozygous dog with a recessive homozygous dog. If the female dog has a litter of 12 puppies, predict how many will have black fur.

12

3

6

4

12.

Multiple Choice

2 mins

1 pt

In cats, the allele for stripes (S) is dominant over the allele for no stripes (s). Two heterozygous cats are bred. If the female cat has a litter of 8, predict how many kittens will have no stripes.

2

6

4

8

13.

Multiple Choice

2 mins

1 pt

In guinea pigs, the allele for short hair (H) is dominant and the allele for long hair (h) is recessive. When a dominant homozygous male and a heterozygous female are bred together, what is the predicted phenotypic ratio for the offspring?

1:1 short hair to long hair

All have short hair

1:3 short hair to long hair

1:3 long hair to short hair

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