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Genetics Test #3
Test Description: Take this test!
Instructions: Answer all questions to get your test result.
1) a change in the nucleotide-base sequence of a gene or DNA molecule
A
probability
B
homozygous
C
genotype
D
mutation
2) entire genetic makeup of an organism
A
hybrid
B
phenotype
C
genotype
D
homozygous
3) when 1 trait is not completely dominant over the other
A
hybrid
B
heterozygous
C
homozygous
D
incomplete dominance
4) process of breeding organisms for specific genetic traits
A
selective breeding
B
genetic engineering
C
mutation
D
chemical mutagen
5) chemical agent that changes genetic material
A
chemical mutagen
B
selective breeding
C
mutation
D
genetic engineering
6) an organism's appearance
A
phenotype
B
mutation
C
genotype
D
hybrid
7) the likelihood that an event will occur
A
male chromosomes
B
hybrid
C
mathematics
D
probability
8) Rr
A
homozygous
B
phenotype
C
pure
D
hybrid
9) XY
A
male chromosomes
B
sex cells
C
gametes
D
female chromosomes
10) 2 dominant or 2 recessive alleles
A
homozygous
B
heterozygous
C
selective breeding
D
hybrid
*select an answer for all questions
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