Heredity

Scientists call an organism with two different alleles for a trait

• factor

• purebred

• trait

• hybrid

A mutation is

• any change that is harmful

• any change in a gene or chromosome

• any change that is helpful

• any change in the phenotype

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Which term refers to physical characteristics that are studied in genetics

• traits

• offspring

• generations

• hybrids

Tags

NGSS.HS-LS3-1

Hair color, height, eye color and freckles are examples of human traits. What do we call the physical expression of the genetic material of an organism?

• genetics

• heredity

• genotype

• phenotype

Tags

NGSS.HS-LS1-1

In a punnet square where are the parent alleles written?

• Top and inside the boxes

• Only on the left and right side of the boxes. 

• outside of the boxes (top and left side)

• All on the top side of the boxes

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

• recessive

• dominant

The genotypes AA and Aa always show up as the __________ phenotype.

• dominant

• recessive

A recessive allele is represented by a ______ letter.

• lower-case

• capital

A dominant allele is represented by a ______ letter.

• lower-case

• capital

The chemicals found in DNA are referred to as bases that are represented by the letters

• QRTP

• ABCD

• DTPG

• ACTG

Tags

NGSS.HS-LS1-1