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Genetics
Test Description: DNA, traits
Instructions: Answer all questions to get your test result.
1) What shape is DNA?
A
single helix
B
strand
C
double helix
D
long
2) What does DNA stand for?
A
deoxyribbonucleic acid
B
deoxyribonucleic acid
C
deoxygenucleic acid
D
detoxyribonucleic acid
3) DNA is made of four bases. What letters represent the bases?
A
CATU
B
ATCG
C
TCAX
D
GACY
4) How do the DNA bases pair up?
A
TA, CA
B
AT, CG
C
CT, AG
D
CG, TC
5) A notable feature or quality is a
A
chromosome
B
allele
C
base
D
trait
6) Two types of traits are
A
inherited and environmental
B
physique and inherited
C
all of the above
D
genetical and environmental
7) People inherit traits from
A
offspring
B
all of the above
C
siblings
D
parents
8) Eye color is an example of an
A
none of the above
B
genetical trait
C
inherited trait
D
environmental trait
9) Where in a cell are chromosomes located?
A
vacuole
B
cell membrane
C
cytoplasm
D
nucleus
10) Human cells have how many chromosomes in them?
A
46
B
impossible to tell
C
1
D
23
11) The language you speak is what type of trait?
A
physical
B
environmental
C
inherited
D
chromosomal
12) Segments of DNA are called
A
bases
B
genes
C
traits
D
alleles
13) What does heterozygous mean?
A
different
B
allele
C
DNA
D
same
14) What does phenotype mean?
A
genetic combination
B
physical feature
C
homozygous
D
allele pairs
15) What tool is used to determine the probability of offspring genotypes and phenotypes?
A
microscope
B
ladder
C
punnett square
D
hammer
16) What type of letter represents a dominant allele?
A
any type of letter
B
upper case
C
lower case
D
A, T, C, or G
17) What does homozygous mean?
A
allele
B
different
C
phenotype
D
same
18) Which of the following is an example of a heterozygous genotype?
A
GG, gg
B
Gg
C
GG
D
gg
19) Which of the following is an example of a homozygous recessive genotype?
A
Gg
B
gg
C
GG
D
GG, gg
20) What happens when bases don't match up correctly?
A
mutations
B
traits
C
genotypes
D
alleles
*select an answer for all questions
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