Genetics Practice

Front

What are the possible blood types of a child if one parent is blood type A and the other is blood type B?

Back

The child could be blood type O, A, B, or AB.

Front

If two purebred species with genotype BB are crossed, what percentage of their offspring will also have the genotype BB?

Back

100% of the offspring will have the genotype BB.

Front

What is the difference between Incomplete Dominance and Co-Dominance compared to a normal Mendelian cross?

Back

In Incomplete Dominance and Co-Dominance, the heterozygous genotype has a unique phenotype.

Front

What can be concluded about two brothers with brown eyes, where one has genotype BB and the other has genotype Bb?

Back

They have the same phenotype (brown eyes) but different genotypes (BB and Bb).

Front

How many alleles are present in the genotype for a simple trait?

Back

There are 2 alleles in the genotype for a simple trait.

Front

Define genotype.

Back

Genotype refers to the genetic makeup of an organism, specifically the alleles it possesses.

Front

Define phenotype.

Back

Phenotype refers to the observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.

Front

What is a dominant allele?

Back

A dominant allele is an allele that expresses its trait even in the presence of a recessive allele.

Front

What is a recessive allele?

Back

A recessive allele is an allele that only expresses its trait when two copies are present (homozygous condition).

Front

What is the principle of segregation?

Back

The principle of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.