Mendelian Genetics and Dihybrid Crosses

Multiple Choice

Homologous Chromosomes have the same _____ but different ______

• Genes; versions

• Alleles; genes

Multiple Select

The difference between somatic cells and gametes are-

• Somatic-sex cells;

  Gametes- body cells

• Somatic- body cells;

  Gametes-sex cells

• Somatic-Diploid (n)

  Gametes-Haploid (2n)

• Somatic-Diploid (2n)

  Gametes-Haploid (n)

Multiple Choice

Where are chromosomes found?

• In DNA molecules

• In the nucleus

• In the cytoplasm

• In the ribosomes

Multiple Choice

How many sex chromosomes does a human have?

• 1

• 4

• 2

• 3

Multiple Select

What is the difference of XX and XY

• XX-male

• XX-female

• XY-female

• XY-male

Multiple Choice

Law states that 1 allele is more dominant than the other. Recessive allele is only expressed when dominant is not present

• Law of dominance

• Law of inheritance

Multiple Choice

An organism is a hybrid genotype (Tt) but is appears tall instead of short.

• Law of Dominance

• Law of Segregation

• Law of Independent Assortment

Multiple Choice

The gene that is hidden unless both genes are present.

• dominant

• recessive

• homozygous

• heterozygous

Multiple Choice

Brown eyes are dominant over blue eyes.

B - brown eyes. b - blue eyes

Baby Ethan is homozygous recessive for blue eyes

Baby Ethan's phenotype is _____

• brown eyes

• blue eyes

• B B

• B b

• b b

Multiple Choice

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Multiple Choice

If a heterozygous parent and a homozygous recessive parent mate, what percentage of their offspring will be dominant?

• 25%

• 50%

• 75%

• 100%