Mendelian Genetics

Alleles (example: H or h) are alternative forms of a gene. How many alleles does a baby guinea pig inherit from their mother?

• 1

• 2

• 23

• whichever one is dominant

Tags

NGSS.HS-LS3-1

A HETEROZYGOUS individual would have the genotype:

• Hh

• hh

• HH

• Hi

Tags

NGSS.HS-LS3-1

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

• BB

• Bb

• bb

• None of the above, brown eyes are dominant.

Tags

NGSS.HS-LS3-1

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?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

If tall eyeballs (T) are dominant to short eyeballs (t), give the genotypes that are possible for tall eyeballs.

Tags

NGSS.HS-LS3-1

Genes determine the characteristics, or __?__, that an individual can have.

• chromosomes

• cells

• genetics

• traits

Tags

NGSS.HS-LS3-1

Patrick Star recently married Patti. He is considered a purebred for his tall head shape (T), which is dominant over a short head (t). If Patti is a short-headed woman, what type of heads would their children have? (HINT: do a Punnett Square on a piece of paper)

• 75% Tall and 25% short

• 25% Tall and 75% short

• 50% Tall and 50% short

• 100% Tall

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Different variations of a gene are called?

• Alleles
• DNA
• Chromosome
• Gene

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

The physical expression of a trait is called the ...

• genotype

• phenotype

Tags

NGSS.HS-LS3-3

Genotype: TT

• homozygous dominant

• homozygous recessive

• heterozygous dominant

Tags

NGSS.HS-LS3-1