What is the role of oxygen in photosynthesis and in cellular respiration?
{silence}Option A.{silence}
Oxygen is used in photosynthesis to produce glucose and is released during cellular respiration.
{silence}Option Be.{silence}
Oxygen is released in photosynthesis and used in cellular respiration to produce energy.
{silence}Option C.{silence}
Oxygen is combined with carbon dioxide in photosynthesis to release energy and released from carbon dioxide during cellular respiration.
{silence}Option D.{silence}
Oxygen is released from glucose during photosynthesis and combines with carbon dioxide to produce energy during cellular respiration.
The correct answer is option A. Oxygen is used in photosynthesis to produce glucose and is released during cellular respiration.
The expected genotypes of the offspring of a cross between a male and a female are shown.
50% homozygous dominant (BB)
0% homozygous recessive (bb)
50% heterozygous (Bb)
What is the genotype of the parents if allele B is dominant over allele b?
{silence}Option A.{silence}
The genotype of one parent is BB, and the genotype of the other parent is bb.
{silence}Option Be.{silence}
The genotype of both parents is BB.
{silence}Option C.{silence}
The genotype of both parents is Bb.
{silence}Option D.{silence}
The genotype of one parent is BB, and the genotype of the other parent is Bb.