Answer:
c. Directional selection
Explanation:
There are three types of selection: stabilizing, directional and disruptive. Currently seed cracker finches show disruptive selection with respect to bills. In disruptive selection two extreme phenotypes are preferred in population over the mean phenotype. Here either, small or large bills are beneficial for birds so it is an example of disruptive selection.
If due to some climatic change all seeds would become hard, it would be more beneficial for birds to have large bills. Slowly nature will select for birds with large bills rather than birds with small bills. The selection now will shift to directional selection since only one of the extreme phenotypes is being favoured.
DNA themselves discovered DNA
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The molecule now known as DNA was first identified in the 1860s by a Swiss chemist called <span>Johann Friedrich Miescher</span>
Answer:
O Were diluted over time
Explanation:
Blending inheritance is an outdated theory about inheritance that is no longer accepted.
The theory is that offspring inherit any characteristics as the average of the parents. For example, if a father had black hair and a mother had blonde hair, the child would have brown hair.
We now know, thanks to Mendel's work on inheritance, that the inheritance of characteristics are not so simple!
Answer: That is false
Explanation: Catfishing is a deceptive activity where a person creates a fake identity on a social network account.
Answer:
The main difference between chromatin and chromosome is that chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material between
