Genetics Review

Heterozygous is when...

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

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NGSS.HS-LS3-2

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is a phenotype

• The genetic make up (code)
• The physical trait

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NGSS.HS-LS3-1

having two different genes for a trait (sometimes called hybrid).

• protein
• homozygous
• heterozygous
• genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Where, in the eukaryotic cell, is DNA located?

• ribosomes
• nucleus
• E.R.
• cytoplasm

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NGSS.MS-LS1-2

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is homozygous dominant?

• Yy
• Y
• yy
• YY

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Tags

NGSS.HS-LS3-1

How many alleles (letters) do each person carry for a trait?

• 1
• 2
• 3
• 4

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NGSS.HS-LS3-1

In this punnett square, which is the dominant trait?
The B stands for bud.

• purple flower bud
• white flower bud
• dominant
• recessive

Tags

NGSS.HS-LS3-1