Genetics

What is a phenotype?

• The expression of a trait; what you see.
• refers to the genetic makeup of an individual
• An organism that has the same genes for a trait (ex. TT or tt)
• the passing of traits from parent to offspring

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

The inherited combination (gene code) of alleles is known as the offspring's

• heredity
• phenotype
• genotype
• redigree

Tags

NGSS.HS-LS3-2

Sex cells are produced through the process of

• mitosis
• cytokinesis
• binary fission
• meiosis

What does heterozygous mean?

• An organism that has the same genes for a trait (TT or tt)
• An organism that has different genes for a trait (Tt)
• When neither gene is fully dominant; offspring is a mixture of both
• the different forms of a trait (hair color--> brown, blonde, red

During meiosis, one parent cell gives rise to how many daughter cells?

• 1

• 2

• 3

• 4

What is the study of genes and inheritance known as?

• Genetics

• Chemistry

• Physics

• Astronomy

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

Heterozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

Tags

NGSS.MS-LS4-4

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Tags

NGSS.HS-LS4-3

NGSS.HS-LS4-4