Pedigrees

How many alleles does a person carry for a trait?

• 1

• 2

• 3

• 4

How many alleles does a child get from each parent for a trait?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Dominant alleles are represented by a ---

• capital letter.

• lowercase letter.

Aa, DD, Bb, yy are all examples of ---

• genotypes.

• phenotypes.

In a heterozygous genotype, the _____ allele takes over in the phenotype.

• recessive

• dominant

• both

What you see, or the physical appearance of an organism, is called the ---

• genotype.

• phenotype.

Tags

NGSS.HS-LS3-1

What do we use pedigrees for?

• To look at families
• To make determinations about the offspring
• To track traits in families
• Nothing

In a pedigree, which shape represents a male?

• circle

• square

Which gender has an X and a Y chromosome?

• male

• female

On a pedigree, this symbol represents a ---

• not affected female.

• not affected male.

• affected male.

• affected female.