A. 0 (all the offspring will have Rr genotype)
B. 100% all rr
C. 50% will be Rr
D. 75% will have the dominant phenotype
hope this helps:)
Active transport: Movement of materials across a membrane that requires an input of energy from a cell. Movement of material against the concentration gradient (from low concentration to high concentration)
Passive transport: Movement of materials across a membrane that does not require energy from the cell. Movement of material against the concentration gradient (from high concentration to low concentration)
Hope this helps!
Answer:
The frequency of the Y allele is 0.7
The frequency of the y allele is 0.3
The frequency of the YY homozygote is 0.49
The frequency of the Yy heterozygote is 0.42
Explanation:
According to Hardy-Weinberg Equilibrium,
p + q = 1
p² + 2pq + q² = 1
where,
p = frequency of dominant allele
q = frequency of recessive allele
p² = frequency of dominant homozygous genotype
2pq = frequency of heterozygous genotype
q² = frequency of recessive homozygous genotype
Here,
yy = q² = 0.09
frequency of y allele = q = √0.09 = 0.3
frequency of Y allele = p = 1-q = 1-0.3 = 0.7
p² = YY = (0.7)² = 0.49
2pq = Yy = 2 * 0.7 * 0.3 = 0.42
Answer:
False
Explanation:
Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg. They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.
The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.
Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.
Answer:
A
Explanation:
All carbohydrates no matter how small are made of carbon,hydrogen and oxygen
