Mendelian Genetics

Front

Who is known as the "father of genetics"?

Back

Gregor Mendel

Front

A HETEROZYGOUS individual would have the genotype:

Back

Hh

Front

In humans, blue eyes are a recessive trait. What genotype would a blue eyed child have?

Back

bb

Front

In pea plants, tall (T) plant alleles are dominant to short (t) plant alleles. If two tall plants (each with the genotype Tt) are crossed, what is the probability that the cross would result in a short pea plant?

Back

25%

Front

Sections of DNA on a chromosome are called:

Back

genes.

Front

In pea plants, the trait for tall stems is dominant over the trait for short stems. If two heterozygous tall plants are crossed, what percentage of the offspring would be expected to have the same phenotype as the parents? Options: 100%, 75%, 50%, 25%

Back

75%

Front

The observable traits of an organism are known as its

Back

phenotype

Front

Each parent contributes one of the genes for a particular trait. The genes of the pair are called: variables, gametes, hybrids, alleles

Back

alleles

Front

In snapdragons, Tallness (T) is dominant to dwarfness (t). In a cross between two plants that are homozygous for the recessive allele, what percent of offspring are expected to exhibit tallness? Options:  25%,  75%, 100%, 0%

Back

0%

Front

The color black is dominant in guinea pigs. The phenotypes of homozygous black guinea pigs and heterozygous black guinea pigs are:

Back

black