WorksheetsUnit 6 Part 1 Genetics Test Review
Total questions: 37
Worksheet time: 21mins
This type of mutation produces EXTRA copies of parts of chromosomes
Duplication
Deletion
Inversion
Translocation
Unlike DNA, RNA contains
Phosphate Groups
Thymine
Adenine
Uracil
Which of the following are found in both DNA and RNA?
Phosphate groups, Guanine, THyminh
Ribose, phosphate groups, and adenine
Deoxyribose, phosphate groups, and Guanine
Phosphate groups, Guanine, and Cytosine
The failure of chromosomes to separate during meiosis is called
Non-disjunction
x-chromosome inactivation
Turner's syndrome
Downs Syndrome
Which of the following combinations of sex chromosomes represents a female?
XY
XXY
XXXY
XX
The following are male sex chromosomes
XY
XX
XXXY
XYY
Crossing-over happens during.....
Cytokinesis
Mitosis
Meiosis II
Meiosis I
The purpose of crossing-over is to:
Produce new combinations of alleles
Match up
Exchange a portion of its chromatid so division can happen
Double the amount of DNA
Changes in the DNA sequence that affect genetic information are known as:
Replications
Transformations
Mutations
Prokaryotes
What type(s) of RNA are involved with protein synthesis?
Transfer RNA only
Messenger RNA only
Ribosomal RNA and Transfer RNA
Messenger RNA, ribosomal RNA, and Transfer RNA
During transcription, an RNA molecule is formed
That is complementary to both strands of DNA
That is identical to part of a single strand of DNA
That is complementary to one strand of DNA
In the cytoplasm
During what phase could nondisjunction occur?
Prophase 1 or 2
Metaphase 1 or 2
Anaphase 1 or 2
Telophase 1 or 2
When a mutation results in NO changes in the amino acid sequence it is referred to as
Silent mutation
fatal mutation
frameshift mutation
nondisjunction
Why is it possible for amino acid to be specified by more than one kind of codon?
Some codons have the same sequence of nucleotides
There are 64 different kinds of codons but only 20 amino acids
Some codons do not specify an amino acid
The codon AUG codes for the amino acid methionine and serves as the "start" codon for protein syntheses
A DNA segment is changed from AAT-TAG to AAA-TAG. This is a
Frame shift mutation
Insertion
Substitution
Deletion
Consider the following sentence: "The cat chased the mouse"
Which of the following variations of this sentence is most like a base
The chased cat the mouse
The cat cat chased the mouse
The cat chased the
The cas chased the mouse
When the reading frame of codons is shifted, how it reads is this type of mutation
Frame Shift Mutation
Substitution
Point Mutation
Deletion Mutation
What type of mutation happens to just one base.
Chromosome mutation
Point mutation
DNA mutation
Deletion mutation
What is it called when a mutation has no effect on the amino acid sequence in the final polypeptide?
Substitution mutation
No mutation
Silent mutation
Replication mutation
What is a mutation?
A change in a chromosomal region.
A negative change in the nucleotide sequence of DNA.
A change in one base pair in DNA.
Any change in the nucleotide sequence of DNA.
What genetics disease can we observe in this karyotype?
Turner's Syndrome
Down Syndrome
Klinefelter's Syndrome
This karyotype is normal
What type of chromosomal mutation loses genes?
Duplication
Inversion
Deletion
Translocation
What type of chromosomal mutation gains a copy of the same genes it already has?
Duplication
Inversion
Deletion
Translocation
What type of chromosomal mutation removes genes and then re-attaches the genes backwards?
Duplication
Inversion
Deletion
Translocation
What type of gene mutation has occurred here? Normal-
AGA-TTC-ATA-GCG
Mutant-
AGA-TTC-AAT-AGC-G
Deletion (causing a frameshift)
Insertion (causing a frameshift)
Substitution
Nonsense
T-G-A-C-C-A
T-G-A-G-C-A
Number 1 is a:
Number 2 is a:
Number 3 is a:
(a)
This type of mutation occurs when part of one chromosome BREAKS OFF AND ATTACHES tot another chromosome
Inversion
Duplication
Deletion
Translocation
Which RNA carries the message?
mRNA
rRNA
tRNA
How many nucleotides equal make up a codon?
1
2
3
4
Where does translation take place?
Chloroplast
Mitochondria
Nucleus
Ribosomes
