Test Corrections - Genetics

Y for yellow body is dominant over y for blue body.  What alleles would produce yellow bodies?

• YY,yy
• Yy,yy
• YY only
• YY,Yy

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.

• 23, 46
• 46, 23
• 2, 4
• 50, 100

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two Alleles make a 

• Gene
• Chromosome
• DNA
• Phenotype

Coiled up DNA forms X shaped structures called

• DNA Coils
• Chargraffs
• Chromosomes
• Alleles

Tags

NGSS.HS-LS3-1

An Organism's physical appearance is its

• Genotype
• Phenotype
• Chromosome
• Allele

The particular mix of alleles (letter combination) is an organism's 

• Phenotype
• Chromosome
• Punnett Square
• Genotype

A gene with two of the same alleles (DD or aa) is considered a __________ gene.

• Genotype
• Hybrid
• Gene
• Purebred

A gene with a mix of alleles (Bb) is considered a _________ gene.

• Purebred
• Hybrid
• Homozygous
• Punnett

You have two alleles on each gene. Where do your alleles come from?

• From the grandparent you most resemble

• Your parents

• Your siblings

• You make them by yourself

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Watson and Crick....

• Took an x-ray picture of DNA
• Grew peas and discovered that alleles could be dominant and recessive.
• Discovered the Shape of DNA
• Invented Genetics