Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Biology (Webster) - Final Exam Review - DNA And Genetics
Test Description: A little review for your final exam.
Instructions: Answer all questions to get your test result.
1) The primary function of DNA is to:
A
store and transmit genetic information
B
prevent mutations
C
make proteins.
D
control chemical processes within cells.
2) All of the following are true about the structure of DNA except:
A
the long strands of nucleotides are twisted into a single helix.
B
every DNA nucleotide contains a sugar, a phosphate group, and a base.
C
short strands of DNA are contained in chromosomes inside the nucleus of a cell.
D
DNA consists of two strands of nucleotides joined by hydrogen bonds.
3) Which of the following is not part of a molecule of DNA?
A
phosphate
B
nitrogenous base
C
ribose
D
deoxyribose
4) The base-pairing rules state that the following are base pairs in DNA:
A
adenine—thymine; guanine—cytosine.
B
uracil—adenine; guanine—cytosine.
C
adenine—thymine; uracil—cytosine.
D
adenine—guanine; thymine—cytosine.
5) A portion of a DNA strand has the base sequence of CCTAGCT. What is its complement?
A
AAGTATC
B
GGATCGA
C
CCTAGCT
D
TTGCATG
6) The function of tRNA is to ______________________________.
A
synthesize DNA
B
form ribosomes
C
transfer amino acids to ribosomes
D
synthesize mRNA
7) Which of the following types of RNA carries instructions for making proteins?
A
mRNA
B
tRNA
C
rRNA
8) During transcription, ____________________________.
A
DNA is replicated
B
translation occurs
C
RNA is produced
D
proteins are synthesized
9) Each nucleotide triplet in mRNA that specifies a specific amino acid is called a(n) _____________________.
A
codon
B
anticodon
C
exon
D
mutagen
10) The process of making proteins from RNA is _________________.
A
transcription
B
peptide synthesis
C
translation
D
replication
11) True-breeding pea plants always:
A
are pollinated by hand.
B
are heterozygous
C
produce offspring that have only one form of a trait.
D
produce offspring that have multiple forms of a trait.
12) Mendel’s finding that the inheritance of one trait had no effect on the inheritance of another became known as the:
A
law of universal inheritance
B
law of independent assortment
C
law of dominance
D
law of separate convenience
13) Which of the following genotypes is homozygous dominant?
A
IAIB
B
Aa
C
aa
D
AA
14) The effects of a mutation can be:
A
All of these
B
neutral
C
harmful
D
helpful
15) If a characteristic is sex-linked, it:
A
can never occur in females.
B
is always fatal.
C
occurs only in females.
D
occurs most commonly in males.
16) People with Down syndrome have ___________.
A
46 chromosomes
B
47 chromosomes
C
no X chromosomes
D
45 chromosomes
17) The principle of dominance states that:
A
some alleles are dominant and others are recessive.
B
alleles are neither dominant nor recessive.
C
all alleles are dominant.
D
all alleles are recessive.
18) A cross of a black chicken (BB) with a white chicken (WW) produces all speckled offspring (BBWW). This type of inheritance is known as:
A
incomplete dominance.
B
multiple alleles
C
polygenic inheritance
D
codominance.
19) The failure of a chromosome to separate during meiosis is called _____________.
A
Down syndrome
B
nondisjuntion
C
Turner’s syndrome
D
X-chromosome inactivation
20) A carrier of a recessive disorder:
A
has two copies of the allele and DOES NOT exhibit symptoms.
B
has one copy of the allele and DOES exhibit symptoms.
C
has two copies of the allele and DOES exhibit symptoms.
D
has one copy of the allele and DOES NOT exhibit symptoms.
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?