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Genetics
Test Description: Test on genetics
Instructions: Answer all questions to get your test result.
1) What is a homzygous allele
A
2 diffrent allels
B
2 of the same allels
2) When an organisms DNA is copied it is called:
A
Mutation
B
Cloning
3) If your mom has an Dominant homozygous allele for green eyes and your dad has a recessive heterozygous allele for blue eyes what color eyes does the offspring have?
A
Blue
B
black eyes
C
One blue eye and green eye
D
Green
4) What is selective breeding?
A
None of the above
B
Breeding two animals together based on their species
C
Breeding two mutations togther
D
Selcting ceartain organisms and breeding them together based on the traits they want the offspring to have
5) What is true about a recessive allele?
A
It will be covered up by the dominate allelle unless the other alleles are also recessive
B
It will always dominate over other allelles
C
There is no difference between the two allels
D
It is always covered up by the recessive allele
6) Which group MOST COMMONLY reproduces thorough sexual reproduction?
A
None of the above
B
Plants
C
Animals
D
All of the above
7) What is inbreeding?
A
Mating with the same race
B
Mating with someone the same age as you
C
Mating with someone of the same mutations
D
Mating with someone in your family
8) What is asexual reproduction?
A
Man copying cells
B
selecting certain cells to breed with
C
All of the above
D
The organism having the ability to copy itself
9) What is the difference between genotype and phenotype?
A
Genotype: your genetic make up Phenotype: physical apperance
B
Phenotype: your genetic make up Genotype: physical apperance
C
Phenotype: hair color eye color DNA Phenotype: DNA
D
Genotype: hair color eye color DNA Phenotype DNA
10) When an error in the DNA occurs what is it called?
A
Mutation
B
Meosis
C
Selctive breeding
D
Mitiosis
11) How many chromosomes are in a reproductive cell? (before sexual reproduction)
A
46
B
57
C
62
D
23
12) How many chromosomes are in a reproductive cell? (after sexual reproduction)
A
46
B
23
C
67
D
52
13) What is heredity?
A
Passing traits from offspring to parent
B
None of the above
C
Passing traits from parent to offspring
D
The amount of genes we have
14) How many genes do humans have
A
24,000
B
100,000
C
15,000
D
1,500
15) Which goes thorough asexual reproduction?
A
Elephants
B
Humans
C
Plants
D
Monkeys
16) When you insert the DNA of one organism into another organism it is called,
A
Cloning
B
Mutation
C
Selective Breeding
D
Genetic Engineering
17) If your dad has Gg traits for green hair and your mom has bb traits for blue hair what is the chance you will have blue hair?
A
75%
B
50%
C
0%
D
100%
18) Which describes Gregor Mendel?
A
A monk
B
All of the above
C
Some one who studied pea plants
D
Father of Genetics
19) What is a heterozygous allele?
A
two of the same allels
B
two diffrent allels
20) What is genetics
A
Study of offspring
B
Genes
C
Punnet squares
D
Study of heredity
*select an answer for all questions
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