Mendelian Genetics

Front

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Back

dominant

Front

Aa, DD, bB, yy are all examples of __________.

Back

genotypes

Front

What are the possible phenotype(s) of the offspring? (Brown hair (A) is dominant to blonde hair (a).)

Back

75% Brown Hair and 25% Blonde Hair

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant to long tails (t). What percentage of the offspring of the cross BbTt x BBtt will have black fur and long tails?

Back

50%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

T - tall and t = short. In the punnett square below, what belongs in the missing square?

Back

tt

Tags

NGSS.HS-LS3-1

Front

Define genotype.

Back

The genetic makeup of an organism, represented by alleles (e.g., Aa, BB).

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

Define phenotype.

Back

The observable physical or biochemical characteristics of an organism, determined by both genotype and environment.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene (e.g., AA or aa).

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene (e.g., Aa).

Tags

NGSS.HS-LS3-2