7th Grade DNA Test 2 Question Preview (ID: 2912)


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The form of mutation where one base is replaced by another kind
a) substitution
b) mutagen
c) insertion
d) deletion

The organelle where protins are synthesized by messenger RNA and transfer RNA
a) ribosome
b) chloroplasts
c) mitochondria
d) nucleus

Material shaped like a double helix that determines inherited characteristics
a) DNA
b) proteins
c) gene
d) RNA

A molecule that makes a mirror copy of sections of DNA and helps make proteins
a) RNA
b) DNA
c) protein
d) ribosome

A string of nucleotides that give the cell information about how to make a specific trait
a) gene
b) DNA
c) protein
d) ribosome

A change in DNA caused by random error or a mutagen
a) mutation
b) DNA
c) gene
d) RNA

The material made of amion acids that causes most of the differences we see in organisms
a) proteins
b) DNA
c) RNA
d) ribosome

A physical or chemical agent that can cause a mutation
a) mutagen
b) replicaiton
c) chromosome
d) protein

In a cell nucleus, the structures that strands of DNA are bound into
a) chromosomes
b) amino acids
c) proteins
d) mutagen

Chemical parts that are transfered to the ribosome by transfer RNA and matched to messenger RNA
a) amino acids
b) thymine
c) chromosoems
d) proteins

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