Genetics

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous genes
• mutated DNA

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

• rr
• R
• RR
• RR or Rr

Tags

NGSS.HS-LS3-2

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the probability of having a white flowered plant if the parents were heterozygous red and homozygous red?

• 0%
• 25%
• 50%
• 100%

The sex of a child is determined by

• whether the father's sperm contains an x or y chromosome
• whether the mother's egg contains an x or y chromosome
• the age of the parents

Tags

NGSS.HS-LS3-1

Males are more likely to suffer from a sex-linked disease or disorder because

• males are the weaker sex
• males have less DNA
• males have 1 X chromosome, so the disorder is more likely to be expressed

Tags

NGSS.HS-LS3-2

Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?

• X^HX^h
• X^hX^h
• X^HY
• X^hY

Tags

NGSS.HS-LS3-1

A bubble guppy with a yellow tail has offspring with a bubble guppy with a red tail. The offspring have orange tails. What is this an example of?

• Codominance

• Incomplete Dominance

• Multiple Alleles

• Polygenic Triats

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Many genes impact human skin color. This means skin color is ______.

• codominant

• incompletely dominant

• polygenic

• has multiple alleles