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Genetics Test Review
Genetics Test Review
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A #biology #Quiz to introduce the basics of #DNA and #protein synthesis and meiosis.
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Answers
1
True or False: In humans the female gamete contains only 23 chromosomes.
True
False
2
If tomatoes have a diploid number of 24, what will the haploid number be?
48
12
6
46
3
A single gene contains ______ base(s).
three
thousands of
a single
no
4
Specifically, where is DNA found?
in the cell membrane
in most organelles
in the cytoplasm
in the nucleus
5
Why is DNA called the blueprint of life?
Life cannot exist without DNA
DNA contains all the instructions for building an organism
The molecules that make up DNA are blue in color
DNA is like a house
6
A sperm cell of a chipmunk has 19 chromosomes. How many chromosomes should be in its' bone cells?
19
36
38
11
7
Crossing over happens during ____, NOT mitosis.
telophase
cytokinesis
metaphase
meiosis
8
What is the end result of meiosis?
Two unique gametes
Four identical gametes
Two identical gametes
Four unique gametes
9
RNA contains the base uracil but DNA does not.
True
False
10
What is this a picture of?
mRNA
RNA
karyotype of a squirrel
nucleus
11
The shape of the DNA molecule is
isohedron
double oval
double helix
parabola
12
A _____ is a sequence of nucleotides found in DNA of a chromosome & codes for a protein or trait.
allele
codon
phenotype
gene
13
In humans, where does DNA replication take place?
ribosome
cytoplasm
lysosome
nucleus
14
What is the complementary
RNA
strand for ATCAGA:
TUGTCT
TAGTCT
UAGUCU
AGACTA
15
What monomer makes up protein?
phosphates
sugars
nucleotides
amino acids
16
Where in the cell are proteins assembled?
mitochondrion
ribosome
nucleus
cell membrane
17
DNA is a polymer consisting of monomers known as
nucleotides
amino acids
peptides
phosphates
18
A nucleotide consists of:
nitrogen base, phosphate, sugar
base, phosphate, hydrogen bond
ribose, deoxyribose, hydrogen bond
base, ribose, deoxyribose
19
The two sides of the DNA ladder are
held
together by
molecular cohesion
phosphates
sugars
hydrogen bonds
20
Which cells are NOT formed during meiosis?
egg cells
sperm cells
gametes
somatic cells
21
DNA is an abbreviation for
diphosphonitric acid
deribose acid
deoxyribonucleic acid
denatured sulfuric acid
22
DNA replication occurs during the __ phase of Interphase, prior to meiosis and mitosis.
G2
G1
none of the above
S
23
In RNA, the base
thymine
is replaced by:
cytosine
uracil
adenine
guanine
24
DNA is composed of repeating subunits called:
codons
phosphates
sugars
nucleotides
25
Codons are translated into:
DNA
RNA
nucleotides
amino acids
26
3 bases on messenger RNA make up a(n):
protein
codon
histone
tRNA
27
Which of the following is NOT found on a molecule of DNA?
deoxyribose
uracil
thymine
phosphate
28
Before replication, a DNA molecule:
copies
unzips
refreshes
transcribes
29
Which of the following is the SMALLEST?
nucleus
chromosome
cell wall
DNA
30
The message from DNA is carried from the nucleus to the cytoplasm by:
amino acids
tRNA
codons
mRNA
31
Who is credited with discovering the structure of DNA?
Watson & Holmes
Darwin & Einstein
Black & Decker
Watson & Crick
32
The purpose of Meiosis I is to separate the sister chromatids.
False
True
33
What carries the amino acid to the mRNA as it is attached to the ribosome?
hydrogen
rRNA
tRNA
uracil
34
The process by which DNA makes a copy of itself
translation
replication
transcription
conservation
35
Another word for protein synthesis is
translation
replication
transcription
acquition
