A standardized system helps and allows scientists to properly name and identify organisms.
Hope this answer helps.
Answer:
c. Affected fathers have all affected daughters, but no affected sons.
Explanation:
Given that the disease is caused by a dominant allele on X chromosome, an affected father would have a disease allele in the X chromosome that passes along to the male gamete, while the gametes containing a Y chromosome would not have it (since it is X-linked).
During sexual reproduction, the father passes an X chromosome to its daughters (the second X chromosome being contributed by the mother) but an Y chromosome to its sons (the single X chromosome being contributed by the mother).
Indeed, within an affected father's offspring, all his daughters will receive the affected X chromosome from him, while his sons will receive an unaffected Y chromosome (since the disease is X-linked). These males will not inherit the disease, for they will receive an unaffected X chromosome from her mother (which is expected to be healthy since the disease is rare).
XD I know this is weird for a guy to be answering this but I'm in wellness class so. the placenta is a flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord. <span>The </span>placenta<span> is also an organ that develops in a female humans uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood. The </span>placenta<span> attaches to the wall of your uterus, and your baby's umbilical cord arises from it. The baby will come out malnourished or small or some kind of undergone experience and will die soon.</span>
Answer:
yes I agree because your life is destined by fate and time and life is a very valuable and prestigious thing to waste so u must make the best out of your life