Mendelian and Non-Mendelian Genetics

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 certain camels, one hump (H) is dominant over two humps (h) while long necks (N) are dominant over short necks (n). Cross a camel that is heterozygous for both traits with a camel that is homozygous recessive for hump & heterozygous for the neck. What is the probability for an offspring to be homozygous recessive for both traits? [Answer in fraction]

Tags

NGSS.HS-LS3-3

In snapdragons, flower color is an incompletely dominant trait. Which genotype will lead to a third blended phenotype?

• Homozygous dominant

• Heterozygous

• Homozygous recessive

What percentage of the female offspring will be a carrier for this recessive disease?

• 0%

• 50%

• 100%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The ability to taste the chemical PTC is due to a single gene in humans. Tasters carry the dominant allele T and nontasters carry the recessive allele t. Imagine two heterozygotes have a large family. The phenotypic ratio for tasters:nontasters in their children is __________.

• 9:3:3:1

• 1:1

• 3:1

• 1:2:1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Match the following terms or concepts with the correct definition or description.

• Genetics

• The Scientific Study of Heredity

• Chromosomes

• Threadlike structures that contain DNA found in the Nucleus of the Cell

• Heterozygous

• An organism that has 1 dominant and 1 recessive allele for a gene

• Punnett Square

• An organism that has 2 of the SAME alleles for a gene

• Homozygous

• A chart the shows the possible alleles combinations from a Genetic Cross

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Match the following

• hh

• Homozygous

  Dominant

• variation of a gene

• Allele

• allele combination

• Genotype

• HH

• Heterozygous

• Hh

• Homozygous

  Recessive

Tags

112.42.c.8.B

Match the following

• gene combination

• phenotype

• physical trait

• allele

• comparison of 2 or more things

• ratio

• alternate forms of a gene

• genotype

Tags

NGSS.HS-LS4-4

Green peas are dominant (G) to yellow peas (g). What is the genotype for a hetereozygous dominant offspring?

• Gg

• gg

• GG

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Dd is

• Dominant

• Recessive

• Both

• None

Tags

NGSS.HS-LS3-2