GENETICS

1. What part of a DNA molecule determines the genetic code, or information, used by a cell?

• a. The color of the nitrogen bases.

• b. The sequence of the bases that codes for genes.

• c. The size of the backbone.

• d. It is different depending on the size of the cell.

3. Each cell in organisms contains a set of hereditary information that gets passed from one generation to the next. The genes in all organisms contain instructions needed to make offspring. Which statement describes heredity in animals?

• a. The children receive genes with traits that are always physically observable.

• b. The children receive genes from each parent.

• c. The children only express recessive traits.

• d. The children express traits from only one parent.

5. John started a new hobby of raising rabbits. He began by breeding a purebred white rabbit (bb) with a purebred black rabbit (BB). If black is the dominant phenotype, what results should John expect to find in the second generation of offspring?

• a. 100% will be black, 0% will be white.

• b. 75% will be black, 25% will be white.

• c. 50% will be black, 50% will be white.

• d. 0% will be black, 100% will be white.

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

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

If B = brown hair and b = blonde hair, what is the probability of brown hair?

• 25%
• 50%
• 0%
• 75%

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?

• It is BB.
• It is Bb
• It is brown
• It is bb.

Tags

NGSS.HS-LS3-1

A ________________________ is used to predict the possible genotype from certain parents

• Mendel Grid
• Genetic Tic Tac Toe
• Punnett Square
• Pedigree Plot

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What percent of offspring will have the recessive trait?

• 25
• 50
• 75
• 100

Tags

NGSS.HS-LS3-3