A. Unskilled will be best answer
Answer:
I think the central idea of the passage is that the family Otzi's father is common in Europe.
Explanation:
My justification for my answer is that his DNA kind of matched the one of the people living in the Neolithic Age. This shows that maybe he was a descendant of those people.
I think the first answer is wrong because people of the Neolithic Age were from the past and I don't think DNA existed by then.
And the think the second is wrong because his mother's family was just rare it wasn't complex.
Finally the last is wrong because the DNA wasn't so hard to test it was also easy to compare it because there were other samples to be compared with.
That leaves us with the last answer as correct.
HOPE IT HELPED
Answer:
The answer is mitotic nondisjunction of X Chromosomes.
Explanation:
Nondisjunction is a type of error that occurs resulting in daughter cells with chromosome numbers that are abnormal (aneuploidy). Due to the error in chromosome numbers, it gives rise to conditions such as Down Syndrome (Trisomy 21) and Turner Syndrome (Monosomy X). Nondisjunction can be caused by;
1. Failure of separation to occur in a pair of homologous chromosome during meiosis I.
2. Failure of separation between sister chromatids in Meiosis II.
3. Failure of separation between sisters chromatids in mitosis.
This gives the 45,X in Turner syndrome. The other X chromosome is partly or completely missing. Hence, the female is born with only one X chromosome.
Answer:
South Africa was the first country to start protecting great white sharks.
