Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Year 10 RWS - Genetics

Total questions: 20

Worksheet time: 22mins

Name
Class
Date
1.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
2.
TT,tt,PP,pp,SS,ss are examples of alleles that are?
a)
homozygous
b)
heterozygous
c)
different
d)
homologous 
3.
The exact genetic makeup of an organism, such as RR, Tt, PP is its?
a)
phenotype
b)
dominance
c)
genotype
d)
trait
4.

DNA is an acronym for _____

a)

Diphosphorus Nucleic Acid

b)

Ribose Nucleic Acid

c)

Deoxyribonucleic Acid

d)

Deoxyribonucleic Acetate

5.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
6.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
7.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
8.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
9.

How many hydrogen bonds form between Cytosine and Guanine?

a)

1

b)

2

c)

3

d)

4

10.

What is a hybrid in genetics?

a)

Two identical alleles

b)

Two different alleles

c)

A recessive trait

d)

A dominant trait

11.

How many chromosomes are found in each cell of your body (excluding gametes)?

a)

46

b)

23

c)

40

d)

45

12.

What are genes?

a)

Pants

b)

Specific traits

c)

Sections of DNA arranged along the chromosomes

d)

Chromosomes

13.

  1. DNA is located in the (a)   of every living cell.

14.

  1. The sides of the DNA ladder are made of __________ and __________.



(a)  

15.

  1. A (a)   is a section of DNA that provides instructions for building a protein.

16.
  1. Describe the role of detergent in DNA extraction.

4 lines
17.

Explain the difference between genotype and phenotype?

4 lines
18.
  1. Why did Mendel’s pea plant experiment produce only yellow seeds in the first generation?

4 lines
19.

Which of the following best describes a phenotype?

a)

The process of cell division

b)

The number of chromosomes

c)

The genetic code of an organism

d)

The physical appearance of an organism

20.

Which base pairs with Thymine in DNA?

a)

Uracil

b)

Cytosine

c)

Adenine

d)

Guanine