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Unit 8: Genetics Vocabulary

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

A characteristic an organism has that is based on it's genes (aka specific genetic code inside its DNA).

a)

Gamete

b)

Allelle

c)

Gene

d)

Trait

2.

The basic unit of heredity. It is based on your DNA code, specifically the coding regions of nucleotides found in your DNA. It is the code that determines your traits.

a)

Gamete

b)

Allelle

c)

Gene

d)

Trait

3.

Select the term that matches with letter A.

a)

Sister Chromatids

b)

Unreplicated homologous chromosomes

c)

Replicated homologous chromosomes

d)

Phenotype

4.

Select the term that matches with letter B.

a)

Sister Chromatids

b)

Unreplicated homologous chromosomes

c)

Replicated homologous chromosomes

d)

Phenotype

5.

Select the term that matches with letter C.

a)

Sister Chromatids

b)

Unreplicated homologous chromosomes

c)

Replicated homologous chromosomes

d)

Phenotype

6.

Select the term that matches with letter C.

a)

Sister Chromatids

b)

Unreplicated homologous chromosomes

c)

Replicated homologous chromosomes

d)

Phenotype

7.

What is shown in this picture (represented by the letters B/b).

a)

Trait

b)

Gene

c)

Allele

d)

Gamete

8.

DNA sequence that is located on a specific part of a chromosome that codes of a specific trait. Determines an organism's genotype.

a)

Trait

b)

Gene

c)

Allele

d)

Genotype

9.

An allele on a chromosome that overrides the effect of a different variant of the same gene on the other copy of the chromosome.

a)

Homozygous

b)

Heterozygous

c)

Dominant Allele

d)

Recessive Allele

10.

An allele that is represented by an uppercase letter.

a)

Homozygous

b)

Heterozygous

c)

Dominant Allele

d)

Recessive Allele

11.

Two copies of the allele need to be present for the phenotype to be expressed. (present on both chromosomes in a homologous pair)

a)

Homozygous

b)

Heterozygous

c)

Dominant Allele

d)

Recessive Allele

12.

An allele that is represented by an lowercase letter.

a)

Homozygous

b)

Heterozygous

c)

Dominant Allele

d)

Recessive Allele

13.

The genetic makeup of an organism that determines it's traits is called it's...

a)

phenotype

b)

genotype

14.

The observable traits determined by genes are called an organism's...

a)

genotype

b)

phenotype

15.

What term best describes this set of letters: Aa

a)

homozygous

b)

heterozygous

16.

What term best describes this set of letters: Yy

a)

homozygous

b)

heterozygous

17.

What term best describes this set of letters: ee

a)

homozygous

b)

heterozygous

18.

What term best describes this set of letters: RR

a)

homozygous

b)

heterozygous

19.

Two _ cells come together to make a _ cell during fertilization.

a)

Diploid, Haploid

b)

Haploid, Diploid

20.

Number 1-23 are what type of cells?

a)

Diploid

b)

Haploid