Genetics Practice Question Preview (ID: 62798)


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Genetics is...
a) The study of cells.
b) The study of heredity.
c)
d)

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) True
b) False
c)
d)

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) 25%
b) 50%
c) 75%
d) 100%

Which of the following is an example of a phenotype
a) A individual is a carrier of a disease
b) An individual is Heterozygous
c) An individual has Blue eyes
d) Bb

To create new haploid cells during the haploid life cycle, the zygote undergoes
a) mitosis
b) fertilization
c) fusion
d) meiosis

What does diploid mean?
a) The cell has the full amount of DNA
b) The cell only has half of the DNA
c) The cell is only half as large as other cells
d) The diploid cell is cut in half

Once meiosis occurs gametes are formed with a reduced number of chromosomes. The gametes are described as being
a) diploid
b) homologous
c) uniploid
d) haploid

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

You inherit a recessive allele from your mother and a dominant allele from your father. Which allele will be seen??
a) Dominant from dad
b) Recessive from mom
c) Neither will be seen
d) It cannot be determined

A cell with a diploid number of 12 chromosomes undergoes meiosis. What will be the product at the end of meiosis?
a) 2 cells each with 12 chromosomes
b) 4 cells each with 6 chromosomes
c) 2 cells each with 6 chromosomes
d) 4 cells each with 12 chromosomes

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