Genetics

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

Tags

NGSS.HS-LS4-4

What is a phenotype

• The genetic make up (code)
• The physical trait

Tags

NGSS.HS-LS3-1

the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• hidden allele
• dominant allele
• recessive allele
• present allele

What best explains why children resemble their parents?

• They eat the same food
• They have similar DNA
• They speak the same language
• They have the same interests

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Freckles are dominant to no freckles. ALL of the couples children have freckles. Which of these is most likely the genotype of the parents?

• Ff and ff
• Ff and Ff
• FF and ff
• ff and ff

Tags

NGSS.HS-LS3-1

Which of these is an example of a heterozygous genotype?

• RR
• Rr
• yellow
• green

Which of the following alleles is homozygous (purebred) recessive?

• Tt
• tt
• TT
• t

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

• recessive
• dominant
• lower case letter
• both