Genetics Quiz
Preview:
What does the term “Genotype” refer to?
A. The physical appearance of an individual
B. The exact genetic information carried by an individual
C. The dominant genes in an organism
D. The study of gene distribution
Short tails (T) are dominant to long tails (t). What is the probability of a long-tailed mouse in the cross Ttxtt?
A. 25%
B. 50%
C. 75%
D. 100%
A trait that covers over another form of that trait.
A. Dominant Trait
B. Recessive Trait
C. Allele
D. Gene
Mendel’s law of Dominance says that ____________.
A. A dominant trait requires two dominant alleles
B. A recessive trait masks a dominant trait
C. Phenotypes are dominant when two recessive alleles are present
D. Only one dominant allele is required to result in a dominant phenotype
Which of the following represents a heterozygous genotype?
A. BB
B. bb
C. Bb
D. bB
The respiratory system contains the
A. heart and blood vessels
B. stomach, esophagus, small and large intestines
C. bladder and kidneys
D. lungs, bronchi, and trachea
Purebred
A. an organism’s physical appearance or visible traits
B. an organism’s genetic makeup or allele combination
C. the offspring of many generations that have the same traits
D. a change in a gene or chromosome
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have –
A. 16 chromosomes.
B. 8 chromosomes.
C. 46 chromosomes.
D. 4 chromosomes.
An organism’s appearance is known as its
A. heredity
B. phenotype
C. genotype
D. pedigree
Researchers discovered four mutations in various cells in a patient’s body. Skin cells, egg cells, blood cells, and nerve cells were found mutated. Which one can be passed on to future generations?
A. Skin Cells
B. Egg Cells
C. Blood Cells
D. Nerve Cells
When parents with different traits are bred, a trait that reappears in the second generation after disappearing in the first generation is a
A. dominant trait
B. true-breeding trait
C. recessive trait
D. characteristic
Phenotype refers to an organisms what?
A. Physical appearance
B. Combination of alleles
C. Chromosomes
D. Genes
The hidden form of an inherited trait
A. dominant trait
B. recessive trait
C. purebred
D. hybrid
Based on the diagram, what are the possible genotypes of the F2 generation?
A. AA and Aa
B. Aa and aa
C. AA, Aa, and aa
D. Only AA
What are the possible genotypes of the F2 generation according to the diagram?
A. AA, Aa, aa
B. AA, aa
C. Aa, aa
D. AA, Aa