Mendel's Monohybrid Crosses

Mendel knew that some traits were ____________and some were.

• dominant and neutral

• dominant and recessive

• recessive and neutral

• recessive and negative

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NGSS.HS-LS3-1

A parent that has 2 dominant alleles for a trait is _________for that trait.

• homozygous recessive

• heterozygous dominant

• homozygous dominant

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NGSS.HS-LS3-1

A parent that has 2 different alleles for a trait (Aa) is referred to as being _______________for that trait.

• heterozygous recessive

• homozygous

• heterozygous

• heterozygous dominant

Tags

NGSS.HS-LS3-1

Mendel established the Law of Segregation. Each gamete produced by a parent contains only _______allele for a trait.

• 1

• 2

• 3

• 4

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NGSS.HS-LS3-2

This cross can prove the law of segregation. Mendel crossed two parents that were

• heterozygous for flower color

• homozygous for flower color

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

This test cross done by Mendel shows that the offspring in F1 are now

• homozygous dominant

• homozygous recessive

• heterozygous

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous genes
• mutated DNA

T = tall an t = short
TT and Tt would result in  the following phenotype

• short
• tall
• medium sized
• neither tall or short

Tags

NGSS.HS-LS3-1

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Tags

NGSS.HS-LS3-1

What is a Monohybrid Cross?

• The trait that appears in the homozygous condition.
• Is used to predict the probability that certain traits will be inherited by offspring.
• Involves a single pair of genes, or one trait.
• The case when one allele is not completely dominant over another.

Tags

NGSS.HS-LS3-3