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Heredity And Environment
Test Description: Review questions for Week 3: Life Science
Instructions: Answer all questions to get your test result.
1) An allele that overpowers (or dominates) in its expression
A
Recessive
B
Heterozygous
C
Homozygous
D
Dominant
2) Carries either two dominant alleles or two recessive alleles
A
Heterozygous
B
Recessive
C
Dominant
D
Homozygous
3) Carries both a dominant allele and a recessive allele
A
Homozygous
B
Dominant
C
Heterozygous
D
Recessive
4) An allele that will be overpowered (hidden in the background) if a dominant allele is also present
A
Homozygous
B
Recessive
C
Dominant
D
Heterozygous
5) The inherited combination of alleles
A
Phenotype
B
Genotype
6) The physical appearance seen from the alleles inherited
A
Phenotype
B
Genotype
7) Dominant alleles are shown with what type of letter?
A
Lower case
B
Capital
8) Recessive alleles are shown with what type of letter?
A
Lower case
B
Capital
9) Our cells usually have ______ chromosomes.
A
50
B
42
C
46
D
38
10) What is a hybrid?
A
Any animal
B
A part of your DNA
C
A type of chocolate
D
The result of two organisms of different species having offspring
11) In order to clone a sheep...
A
Scientists had to find a special type of sheep
B
Scientists traced a copy of the genes
C
Veterinarians had to put the genes to sleep and operate on them
D
Scientists had to wake up the sleeping genes in the animal
12) Punnett Squares...
A
Have 4 squares in 1
B
Are a 2 x 2 matrix
C
Represent genetic probabilities
D
all of the above
13) True or False: Character traits like kindness and courage are inherited.
A
True
B
False
*select an answer for all questions
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