Answer: B. 0.77
Explanation:
We should note that from the Hardy-Weinberg law, the formula used is:
p²+ 2pq+ q² = 1
From the information given,
p = purple allele
q = red allele
q² = 59/100 = 0.59
Then, the frequency of the red allele that is recessive will be:
q² = 0.59
q= √0.59
q = 0.768.
q = 0.77
Therefore, the correct option is B.
Answer:
You could have a heart attack.
Explanation:
When plaque builds up, it narrows your coronary arteries, decreasing blood flow to your heart. Eventually, the decreased blood flow may cause chest pain (angina), shortness of breath, or other coronary artery disease signs and symptoms. A complete blockage can cause a heart attack.
Answer:
The researchers hypothesized that the honeyguide responded specifically to the humans’ “brrr-hmmm” calls, and not just human voices. They tested this hypothesis by performing several different calls and monitoring which calls caused the birds to respond.
Explanation:
30 because each cells chromosomes will be even
Answer:
They are caused by mutation of the X chromosome.
Explanation:
- In an XY-chromosomal system of sex determination, Both X and Y- chromosomes are Sex chromosome.
- Genes on sex chromosome are called sex linked genes.
- Sex linked genes are referred to as X-linked while Y-linked genes are the ones located only on the Y-chromosome.
- The genes located in on Y chromosome are holandric.
- Human females are homozygous for X chromosome while Human males are hemizygous i.e. they have only one X-chromosome and another Y chromosome.
- Disorders caused due to the mutation in the X chromosome are called X- linked disorders. Some examples are Hemophilia, Fragile X-syndrome etc.
- Sex lionked disorders can be X-linked Dominant disorder or X- linked Recessive disorder.
- The Dominant disorders are present in every generation, and affected males come from affected mothers. Daughters of affected fathers are always affected but sons of such father are not affected.
- The recessive disorders are more common in Males and these males come from affected mothers or carrier mothers. The affected females come from affected father and an affected or carrier mother.
