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Final Exam
Test Description: Review for final
Instructions: Answer all questions to get your test result.
1) Differences between members of the same species
A
predators
B
adaptations
C
variations
D
selections
2) Process by which individuals that are better adapted to their environment are more likely to survive and reproduce
A
variation
B
competition
C
overproduction
D
natural selection
3) If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that the offspring will have black fur?
A
100
B
25
C
50
D
75
4) What happens during meiosis?
A
Chromosome paris remain together when new sex cells are formed
B
Two sex cells combine
C
Chromosome pairs separate and are distributed into new sex cells
D
Each sex cell copies itself to form four new chromosomes
5) Which combination of sex chromosomes results in a male human being?
A
XX
B
either XX or XY
C
XY
D
YY
6) What is a genome?
A
all the DNA in one cell of an organism
B
all the cells produced by meiosis
C
all the karyotypes in a cell
D
all the plasmids produced from inserting DNA into a cell
7) Which form of selective breeding crosses parents with the same or similar sets of alleles?
A
fertilization
B
cloning
C
hybridization
D
inbreeding
8) What must occur for a girl to be colorblind?
A
Each parent must have the recessive allele for colorblindness
B
Each parent must be colorblind
C
Each parent must have the dominant allele for colorblindness
D
Each parent must have two codominant alleles for colorblindness
9) Both parents of a child have type A blood. What might their child's blood type be?
A
Type A or Type AB
B
Type A or Type O
C
Type A or Type B
D
Type A only
10) An organism's physical appearance
A
heterozygous
B
genotype
C
phenotype
D
codominance
*select an answer for all questions
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