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Simple Mendelian Genetics

Total questions: 17

Worksheet time: 10mins

Name
Class
Date
1.

Which one carries genetic information, and is responsible for the transmission of traits?

a)

RNA

b)

DNA

c)

Ribosomes

d)

Mitochondria

2.

A segment of DNA that codes for a specific trait in an organism:

a)

Gene

b)

RNA

c)

Chromosome

d)

Chromatid Pair

3.

An alternative form of a gene:

a)

Homozygous

b)

Genotype

c)

Phenotype

d)

Allele

4.

Which is heterozygous?

a)

XX

b)

xx

c)

Xx

5.

Which is homozygous dominant?

a)

XX

b)

xx

c)

Xx

6.

Which is homozygous recessive?

a)

XX

b)

xx

c)

Xx

7.

If an animal has brown fur what is this an example of?

a)

Recessive Trait

b)

Dominant Trait

c)

Phenotype

d)

Genotype

8.

What is "Tt" is an example of?

a)

Recessive Trait

b)

Dominant Trait

c)

Phenotype

d)

Genotype

9.

A long condensed strand of DNA forming in the nucleus of a cell prior to cell division is called:

a)

Chromatid Pair

b)

Chromosome

c)

Ribosome

d)

RNA

10.

Heterozygous individuals carry one dominant allele and one _____________ allele.

a)

Repeating

b)

Dorset

c)

Recessive

d)

Ruminant

11.

A method utilizing the known genotypes of parent organisms to predict the expression of a given trait or traits in offspring.

a)

Punnett Square

b)

Mendelian Square

c)

Textural Triangle

d)

Autoclave

12.

What percentage of peas will be homozygous?

a)

10%

b)

30%

c)

50%

d)

75%

13.

What type of trait is the color green in this problem?

a)

Dominant

b)

Recessive

c)

Repeating

d)

Nucleic

14.

X-shaped structures that serve as the mechanism for the transmission of genetic material during cell division:

a)

Alleles

b)

Genes

c)

Chromosomes

d)

Chromatid Pairs

15.

Which traits are most common forms in natural populations?

a)

Dominant

b)

Recessive

c)

Repeating

d)

Heterozygous

16.

If a two dogs with brown fur reproduce and have a litter of three puppies with brown fur and one puppy with white fur, what must be true about the parents?

a)

The parents both have homozygous dominant alleles for fur color.

b)

The parents both have homozygous recessive alleles for fur color.

c)

The parents both have heterozygous alleles for fur color.

d)

One parent has homozygous dominant alleles and one parent has heterozygous alleles.

17.

DNA stands for:

a)

Dominant Normal Alleles

b)

Dominant Nucleic Alleles

c)

Diploid Nucleic Acid

d)

Deoxyribonucleic Acid