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Genetics Practice
Test Description: Genetics
Instructions: Answer all questions to get your test result.
1) Genetics is...
A
The study of heredity.
B
The study of cells.
2) A homozygous dominant parent crossed with a heterozygous dominant parent will result in a mix of 50% of offspring displaying the dominant trait 50% displaying the recessive trait
A
False
B
True
3) In a Punnett square, two offspring have a genotype of Rr, one has a genotype of RR and another has a genotype of rr. What percentage will have the dominant phenotype?
A
75%
B
25%
C
100%
D
50%
4) Which of the following is an example of a phenotype
A
An individual is Heterozygous
B
Bb
C
A individual is a carrier of a disease
D
An individual has Blue eyes
5) To create new haploid cells during the haploid life cycle, the zygote undergoes
A
meiosis
B
mitosis
C
fusion
D
fertilization
6) What does diploid mean?
A
The cell only has half of the DNA
B
The diploid cell is cut in half
C
The cell has the full amount of DNA
D
The cell is only half as large as other cells
7) Once meiosis occurs gametes are formed with a reduced number of chromosomes. The gametes are described as being
A
diploid
B
uniploid
C
homologous
D
haploid
8) The dominant allele for tongue-rolling is T; Which of the following allele pairs will result in the recessive allele being expressed?
A
T from the mother and t from the father
B
t from the mother and t from the father
C
T from the mother and T from the father
D
t from the mother and T from the father
9) You inherit a recessive allele from your mother and a dominant allele from your father. Which allele will be seen??
A
Neither will be seen
B
Dominant from dad
C
It cannot be determined
D
Recessive from mom
10) A cell with a diploid number of 12 chromosomes undergoes meiosis. What will be the product at the end of meiosis?
A
4 cells each with 12 chromosomes
B
4 cells each with 6 chromosomes
C
2 cells each with 6 chromosomes
D
2 cells each with 12 chromosomes
*select an answer for all questions
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