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Worksheets

Genetics

Total questions: 16

Worksheet time: 14mins

Name
Class
Date
1.

In which part of the cell does DNA replicate?

(a)  

2.

During which particular phase does DNA replicate?

(a)  

3.

3. It is the name of the sugar in DNA.

(a)  

4.

This enzyme is responsible for adding nucleotides to the two separated DNA strands.

(a)  

5.

The DNA strands are twisted around each other, and that’s why a DNA molecule is a (a)   .

6.

A DNA sequence is a chain of (a)   .

7.

A (a)   is always paired with cytosine, and there are three hydrogen bonds between them.

8.

The helicase continuously unzips the DNA molecule, and the (a)   continuously adds nucleotides to each of the separated strands.

 

 

9.

. When the process of unzipping DNA molecules and adding nucleotides is finished, there will be two unidentical (a)   molecules produced.

10.

What is the complementary DNA sequence of GGCATTCAGCT?

(a)  

11.

How many strands does DNA have? RNA?

a)

1 DNA

2 RNA

b)

2 DNA

2 RNA

c)

2 DNA

1 RNA

d)

3 DNA

2 RNA

12.

What are the four nitrogenous bases in DNA?

a)

adenine

thymine

guanine

cytosine

b)

adenine

uracil

cytosine

guanine

c)

adenine

thymine

cryptosine

guanine

d)

adenine

thymine

uracil

cytosine

guanine

13.

What enzyme unzips the DNA during transcription?

a)

DNA Helicase

b)

DNA Polymerase

c)

RNA Polymerase

d)

RNA Helicase

14.

Where in the cytoplasm does mRNA need to attach itself to?

a)

mitochondria

b)

ribosomes

c)

Rough endoplasmic reticulum

d)

Golgi apparatus

15.

.What is the sugar of an RNA nucleotide?

a)

deoxyribose

b)

ribosomes

c)

lactose

d)

ribose

16.

What is the difference between codon and anticodon?

4 lines