Genetics Review

Different forms of a gene

• allele

• homozygous

• trait

• chromosome

Tags

NGSS.HS-LS3-1

What does a punnett square help you do ?

• determine how many offspring will be produced in all

• determine the results of asexual reproduction

• predict possible traits offspring will have

• predict how long offspring will live

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

What is one advantage of sexual reproduction over asexual reproduction?

• offspring are identical to parents

• offspring inherit a wider variety of genetic material

• offspring are born alive, rather than from eggs

• parents can produce more offspring that through asexual reproduciton

Tags

NGSS.MS-LS3-2

An allele trait that only shows up when no dominant allele is present

• recessive allele

• dominant allele

• mutation

• hidden allele

The possibility of genetic traits being passed from parent to offspring is

• gene

• trait

• mutation

• heredity

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

A genotype refers to

• how an organism will appear

• whether an allele is dominant or recessive

• the possible combination of alleles in a gene

• physical expression of genes

Which of the following is homozygous recessive ?

• Dd

• DD

• dd

Which of the following is heterozygous?

• Dd

• DD

• dd

Which of the following is homozygous dominant?

• DD

• Dd

• dd

An allele whose trait always shows up when the allele is present is

• recessive

• homozygous

• heterozygous

• dominant