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Genetics Vocabulary

Total questions: 30

Worksheet time: 22mins

Name
Class
Date
1.

the science that studies how traits are inherited through the interactions of alleles

a)

heredity

b)

genetics

c)

biology

2.

the passing of traits from parent to offsprint

a)

heredity

b)

genetics

c)

botany

3.

the physical or visible appearance of an organism; a trait we can see

a)

genotype

b)

phenotype

4.

blue eyes, curly hair

a)

genotype

b)

phenotype

5.

Tt, BB, rr

a)

genotype

b)

phenotype

6.

controls the trait; you only need one gene for the trait to show up in an organism

a)

dominant

b)

recessive

7.

the weaker trait; you need 2 genes for the trait to show up in an organism

a)

dominant

b)

recessive

8.

the different forms of a trait that make up a gene, R OR r

a)

allele

b)

dominant

c)

recessive

9.

purebred; the same gene pair (Alleles)

a)

homozygous

b)

heterozygous

10.

hybrid; a different gene pair (Alleles)

a)

homozygous

b)

heterozygous

11.

TT, tt

a)

homozygous

b)

heterozygous

12.

Rr, Ff

a)

homozygous

b)

heterozygous

13.

BB, RR, TT

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

14.

nn, ww, gg

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

15.

Tt, Bb, Ww

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

16.

the father of genetics

a)

James Watson

b)

Robert Hooke

c)

Gregor Mendel

d)

Reginald Punnett

17.

a tool used to predict the results from crossing 2 sets of allelles

a)

microscope

b)

Punnett square

c)

Jawsome trapezoid

18.

The basic unit of heredity that consists of a segment of DNA on a chromosome

a)

chromosome

b)

double helix

c)

homozygous

d)

gene

19.

An organism that inherits two of the same alleles from its parents

a)

dominant

b)

phenotype

c)

heterozygous

d)

homozygous

20.

A term that describes an allele that is not expressed when combined with a dominant form of the allele

a)

gene

b)

recessive

c)

homozygous

d)

phenotype

21.

The likelihood or chance that a specific outcome will occur out of a total number of outcomes

a)

heredity

b)

probability

c)

percentage

d)

ratio

22.

The passing of genes from parents to offspring

a)

Punnett Square

b)

probability

c)

genetics

d)

heredity

23.

An organism that inherits two different alleles from its parents

a)

dominant

b)

recessive

c)

homozygous

d)

heterozygous

24.

The trait expressed if you inherit Ff is the

a)

genotype

b)

dominant trait

c)

recessive trait

d)

homozygous

25.

Which of these would express the dominant trait?

a)

AA

b)

Tt

c)

Rr

d)

All of the above

26.

In order for a recessive trait to be expressed,

a)

both alleles have to be recessive

b)

one allele has to be recessive

c)

one allele has to be recessive while the other is dominant

d)

both alleles have to be expressed with capital letters

27.

P refers to

a)

Punnett squares

b)

The parental generation

c)

The percentage of offspring

d)

a recessive allele

28.

F1 refers to

a)

The first dominant allele

b)

The first offspring

c)

The first filial generation from crossing the P generation

d)

The second filial generation from crossing the F1 offspring

29.

F2 refers to

a)

The second dominant allele

b)

The second offspring

c)

The first filial generation from crossing the P generation

d)

The second filial generation from crossing the F1 offspring

30.

True or False: Phenotype is determined by genotype

a)

True

b)

False