Mendelian Genetics

Which of the following is a genotype which can result from the cross shown in the picture?

• BB

• bb

• Bb

• bB

Tags

NGSS.HS-LS3-1

Select possible genotypes which can result from this cross (two possible correct answers!)

• NN

• Nn

• nn

• nN

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A true-breeding blue butterfly crosses with a true-breeding white butterfly. All their offspring are white. What is the dominant color trait?

• Blue

• White

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype ratio of the cross shown in the picture?

• 0 FF : 1 Ff : 0 ff

• 1 FF : 2 Ff : 1 : ff

• 1 FF : 1 Ff : 1 : ff

• 2 FF : 2 Ff

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the phenotype ratio of the cross shown in the picture? F = Red feathers, f = blue feathers

• 1 red : 1 blue

• 3 red : 1 blue

• 2 red : 1 blue

• 1 red : 0 blue

In hamsters, speckled fur is dominant and represented with the letter "F".

Solid fur is recessive and represented with the letter "f".

Brown fur is dominant and represented with the letter "B"

Tan fur is recessive and represented with the letter "b"

What is the genotype of a hamster which is tan with solid fur?

Tags

NGSS.HS-LS3-1

In hamsters, speckled fur is dominant and represented with the letter "F".

Solid fur is recessive and represented with the letter "f".

Brown fur is dominant and represented with the letter "B"

Tan fur is recessive and represented with the letter "b"

What is the phenotype of an hamster which has the genotype Ffbb

• Speckled with brown fur

• Speckled with tan fur

• Solid with brown fur

• Solid with tan fur

Tags

NGSS.HS-LS3-2

A parrot which is heterozygous for feather color and is green mates with a parrot which is homozygous and is red. What color or colors can their offspring be?

• Only green

• Only red

• Green or Red

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A parrot which is heterozygous for feather color and is green mates with a parrot which is homozygous and is red. What color is recessive?

• Green

• Red

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What genotype is it not possible for the parents of the dihybrid cross in the picture to produce?

• Bbww

• bbww

• BbWw

• BBWw

Tags

NGSS.HS-LS3-2