Genetics and Traits

Genotype refers to the...

• The genetic makeup of an organism

• How an organism will appear

• Whether an allele is dominant or recessive

• physical trait

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is a phenotype?

• The genetic make up

• The physical appearance of an organism

Having two alleles that are the same is called...

• Heterozygous

• Recessive

• Dominant

• Homozygous

Tags

NGSS.HS-LS3-1

Having two alleles that are different means that they are...

• Homozygous

• Heterozygous

• Dominant

• Recessive

G= Green, g= Yellow

The genotype for a yellow flower is..

• GG

• Gg

• gg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A pattern of inheritance in which the phenotypes of both alleles inherited for a trait are clearly expressed.

• Dominant

• Recessive

• Codominance

• Genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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-LS3-2

Which of the following is homozygous dominant?

• Yy

• yy

• Y

• YY

An allele whose trait only shows up when no dominant allele is present.

• recessive allele

• present allele

• dominant allele

• hidden allele

What is this called?

• Genotype chart

• Phenotype Chart

• Punnett Square

• Gregor Mendel's Square