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2021.DNA, RNA, PROTEIN SYNTHESIS

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

the monomers that when bonded together

create protein

a)

Amino Acid

b)

Anticodon

c)

Codon

d)

DNA Replication

2.

Won a noble prize for making a model that shows the 3D shape of DNA

a)

Mick Jagger

b)

Rosalind Franklin

c)

Chargaff

d)

Watson and Crick

3.

the sequence of nitrogenous bases found on the tRNA that matches the codon on the mRNA strand

a)

Amino Acid

b)

Anticodon

c)

Codon

d)

DNA

4.

RNA that transports amino acids to the ribosomes to be assembled into proteins

a)

RNA backbone

b)

rRNA (ribosomal RNA)

c)

tRNA (transfer RNA)

d)

Translation

5.

set of three nitrogenous bases that represent amino acids; order of nitrogenous bases in mRNA

a)

Replication

b)

Codon

c)

DNA

d)

Double Helix

6.

the process of converting information in mRNA into a sequence of amino acids

a)

rRNA (ribosomal RNA)

b)

RNA backbone

c)

Translation

d)

Pyrimidine

7.

made up of phosphate groups and deoxyribose sugars

a)

Replication

b)

DNA backbone

c)

Hydrogen Bonds

d)

Double Helix

8.

process in the cell nucleus where enzymes make an RNA copy of a DNA strand

a)

photocopy

b)

replication

c)

translation

d)

transcription

9.

process in which chromosomal DNA is copied before mitosis or meiosis

a)

replication

b)

transcription

c)

translation

d)

duplication

10.

made up of phosphate groups and ribose sugars

a)

RNA backbone

b)

Purines

c)

Pyrimidines

d)

rRNA (ribosomal RNA)

11.

shape of DNA molecule formed when two twisted DNA strands are coiled into a springlike structure

a)

Mrna (messenger RNA)

b)

Hydrogen Bonds

c)

Double Helix

d)

Nitrogenous Base

12.

nitrogenous bases that have only one carbon nitrogen ring (thymine, cytosine, and uracil)

a)

Pentose Sugar

b)

Purines

c)

Pyrimidines

d)

rRNA (ribosomal RNA)

13.

the bond that loosely hold together the nitrogenous bases on each strand of DNA

a)

covalent

b)

ionic

c)

hydrogen

d)

james

14.

nitrogenous bases that have two carbon nitrogen rings (adenine and guanine)

a)

Nucleus

b)

pyrimidines

c)

rRNA (ribosomal RNA)

d)

Purines

15.

the type of RNA that transports information from the DNA in the nucleus to the cell's cytoplasm

a)

Nitrogenous Base

b)

Trna (transfer RNA)

c)

Mrna (messenger RNA)

d)

Rrna (ribosomal RNA)

16.

carbon ring structure found in DNA and RNA that contains one or more atoms of nitrogen

a)

Nucleus

b)

Nitrogenous Base

c)

Pentose Sugar

d)

Nucleotides

17.

nitrogenous bases that have two carbon nitrogen rings (adenine and guanine)

a)

pyrimidines

b)

DNA

c)

purines

d)

Uracil

18.

the sugar, phophate group, and the nitrogenous base

a)

Nucleotide

b)

Nucleus

c)

Pentose Sugar

d)

Amino acid

19.

the site of DNA replication and transcription

a)

Nucleus

b)

Ribosome

c)

Golgi

d)

Endoplasmic Reticulum

20.

5 carbon sugar

a)

pentose sugar

b)

hexose sugar

c)

powdered sugar

d)

brown sugar

21.

During RNA synthesis, the DNA template sequence

5’-TAGCTG-3’ would be transcribed to produce which of the following RNA sequences

a)

5’ - ATCGAC - 3’

b)

5’ - CAGCUA - 3’

c)

5’ - UAGCUG - 3’

d)

5’ - CAGCTA - 3’

22.

The base composition of samples of genomic DNA from several different animals are given to you. For one sample, you determine the composition of G to be 30 %, which of the samples is likely to come from the same

species?

a)

25 % T

b)

25% C

c)

30% A

d)

30% C

23.

What is the role of tRNA during translation?

a)

bond to open the DNA strand to carry the code for protein synthesis out of the nucleus

b)

carry ribosomes to the site of protein synthesis

c)

break apart mRNA and send it back to the nucleus so that it can be reused

d)

Carry amino acids to the mRNA for correct placement into the protein chain

24.

How many codons are needed to specify three amino acids?

a)

3

b)

6

c)

9

d)

12

25.

One similarity between DNA and messenger RNA molecules is that they both contain

a)

the same sugar

b)

a sequence of nitrogen bases

c)

a nitrogenous base known as uracil

d)

double-stranded polymers