DNA Genes Phenotype and Genotype

Segments of DNA are called _______________________

• Genes

• Alleles

• Traits

• Chromosomes

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Genes always appear in pairs. Your parents donate ________ allele for every trait.

• 1
• 2
• 23
• 46

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is the correct definition for a genotype?

• The physical expression of a gene. (Characteristics)

• A strand of DNA made up of multiple mutations.

• The expression of one of your parents traits.

• The set of genes in our DNA which is responsible for a particular trait.

Which of the following is the correct definition for a phenotype?

• The physical expression of a gene. (Characteristics)

• A strand of DNA made up of multiple mutations.

• The expression of one of your parents traits.

• The set of genes in our DNA which is responsible for a particular trait.

Tags

NGSS.HS-LS3-1

Alternative forms of a gene are called

• Alleles
• Homozygous
• DNA
• Genetics

Tags

NGSS.HS-LS3-1

A dominant allele is written as a(n)

• lower case letter

• upper case letter

• unicorn emoji

• question mark

A recessive allele is written as a(n)

• lower case letter

• upper case letter

• hashtag

• smiley face

If a trait is recessive, it needs to be inherited from ___ parents to be 'expressed'.

• one
• both

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Example of homozygous genes are (select two)

• FF

• ff

• Ff

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa