wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Genetics

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

Gene locus is the physical site or location of a specific ​ (a)   on a ​ (b)   .

Choose from the below words
gene
chromosome
2.

We all have two alleles, or versions, of each gene. Being ​ (a)   for a particular gene means you inherited two identical versions. It's the opposite of a ​ (b)   genotype, where the alleles are different. People who have recessive traits, like blue eyes or red hair, are always homozygous for that gene.

Choose from the below words
homozygous
heterozygous
3.

A segment of DNA that codes for a trait

a)

gene

b)

centromere

c)

chromosome

d)

chromatid

4.

an observable characteristic

a)

trait

b)

personality

c)

cell

d)

DNA

5.

Genetic traits are determined by one or more

a)

genes

b)

organelles

c)

random chances

d)

cells

6.

The alleles that an organism has/inherits are its

a)

genotype

b)

phenotype

c)

chromosome

d)

recessive

7.

Long strands of DNA are wrapped into

a)

DNA

b)

Chromosome

c)

Alleles

d)

Phenotype

8.
Chromosomes are made of
a)
DNA
b)
RNT
c)
WWE
d)
DMA
9.

Segments of DNA are called _______________________

a)

Genes

b)

Alleles

c)

Traits

d)

Chromosomes

10.
Genes always appear in pairs. Your parents donate ________ allele for every trait.
a)
1
b)
2
c)
23
d)
46
11.

Which of the following is the correct definition for a genotype?

a)

The physical expression of a gene. (Characteristics)

b)

A strand of DNA made up of multiple mutations.

c)

The expression of one of your parents traits.

d)

The set of genes in our DNA which is responsible for a particular trait.

12.

Which of the following is the correct definition for a phenotype?

a)

The physical expression of a gene. (Characteristics)

b)

A strand of DNA made up of multiple mutations.

c)

The expression of one of your parents traits.

d)

The set of genes in our DNA which is responsible for a particular trait.

13.
Alternative forms of a gene are called
a)
Alleles
b)
Homozygous
c)
DNA
d)
Genetics
14.

What are the structures in this image called?

a)

chromosomes

b)

centromere

c)

sister chromatids

d)

chromatin

15.
The traits of an organism are passed to its offspring on small coded strands of DNA material called
a)
meiosis
b)
recessive traits
c)
genes
d)
heredity