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Unit 8
Test Description: Test
Instructions: Answer all questions to get your test result.
1) An allele that can be masked or covered up by another allele, is known as the ________ allele.
A
heterozygous
B
recessive
C
dominant
D
homozygous
2) _____ is the study of how traits are passed from parent to offspring.
A
heredity
B
genetics
C
Punnett
D
Mendel
3) BB or Bb is an organism's _____.
A
dominant alleles
B
phenotype
C
genotype
D
recessive alleles
4) The allele that is written as a capital letter and shows up in an organism is the ______ allele.
A
homozygous
B
recessive
C
heterozygous
D
dominant
5) When both alleles of the parent or offspring are identical, one is said to the _______.
A
homozygous
B
heterozygous
C
dominant
D
recessive
6) On a Punnett Square where are the female alleles located?
A
top
B
They are not listed.
C
bottom
D
side
7) On a Punnett Square where are the male alleles located?
A
bottom
B
side
C
They are not listed.
D
top
8) A heterozygous gene is when the alleles present are ____________, such as Bb.
A
both dominant
B
same
C
different
D
both recessive
9) For an offspring to display a recessive trait, both parents must have at least one _______ allele in their genotype.
A
recessive
B
homozygous
C
dominant
D
heterozygous
10) Which of the following is considered to be heterozygous?
A
Bb
B
BB
C
TT
D
bb
11) Which of the following is considered to be homozygous dominant?
A
bb
B
BB
C
Tt
D
tt
12) The physical characteristic resulting from a genetic cross is a(n) _________.
A
allele
B
trait
C
Punnett Square
D
gene
13) What is an exact copy of an organism?
A
reproduction
B
trait
C
genome
D
clone
14) What is ALL the DNA in a cell?
A
Domain
B
Genome
C
Allele
D
Trait
15) What disease has been helped with genetic engineering through the production of insulin?
A
Dwarfism
B
Diabetes
C
Sickle Cell Anemia
D
Cystic Fibrosis
*select an answer for all questions
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