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Genetics
Test Description: Basic Genetics
Instructions: Answer all questions to get your test result.
1) The physical appearance of an organism is its?
A
genotype
B
apperance
C
homozygous
D
phenotype
2) A number that describes how likely it is that an event will occur is the _______________________ of the event?
A
probability
B
stability
C
likelyhood
D
occurance
3) An organism that is _____________________ has two identical alleles for a trait.
A
homozygous
B
similar
C
different
D
heterozygous
4) A Punnett square shows the combination of ________________________ that parents can pass on to offspring.
A
alleles
B
genotype
C
letters
D
phenotype
5) The genetic makeup of an organism is its?
A
heterozygous
B
trait
C
phenotype
D
genotype
6) Which of these genotypes is heterozygous?
A
cc
B
AA
C
AAA
D
Bb
7) Which of these is not a phenotype?
A
homozygous
B
short
C
round
D
tall
8) On a separate sheet of paper show a cross between individuals that are Aa x Aa, how many boxes of the Punnett square will show an offspring that is AA?
A
1
B
2
C
3
D
4
9) What is the scientific study of Heredity?
A
Biology
B
Heredity
C
Genetics
D
Chemistry
10) A trait that always shows up in the organism when the allele is present.
A
dominant
B
heterzygous
C
homozygous
D
recessive
11) A trait that is hidden or masked when another allele is present.
A
recessive
B
homozygous
C
heterozygous
D
dominant
12) What is made up of many genes joined together carrying hereditary information.
A
chromosomes
B
jeans
C
genes
D
alleles
13) What is a specific characteristic, such as height or color.
A
recessive
B
trait
C
chromosomes
D
gene
14) On a separate sheet of paper show a cross between individuals that are pp x PP, how many boxes of the Punnett square will show an offspring that is pp?
A
2
B
3
C
none
D
1
15) On a separate sheet of paper show a cross between individuals that are Ff x FF, how many boxes of the Punnett square will show an offspring that is Ff?
A
none
B
1
C
3
D
2
16) On a separate sheet of paper show a cross between individuals that are Gg x Gg, what is the probability of getting an offspring that has a heterozygous genotype?
A
75%
B
100%
C
50%
D
25%
17) On a separate sheet of paper show a cross between individuals that are Qq x qq , what is the probability of getting an offspring that is homozygous?
A
0%
B
100%
C
50%
D
25%
18) On a separate sheet of paper show a cross between individuals that are Yy x Yy, what is the probability that an offspring will be totally recessive?
A
75%
B
25%
C
100%
D
0%
19) In humans, brown hair is dominant to blonde hair. Complete a Punnett square to show the genotypes expected for the following cross: heterozygous brown x homozygous blonde. What is the probability of getting an offspring that is homozygous brown?
A
50%
B
100%
C
25%
D
0%
20) On a separate sheet of paper show a cross between individuals that are Hh x HH , how many boxes of the Punnett square will show an offspring that is HH?
A
4
B
1
C
3
D
2
*select an answer for all questions
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