Answer:
meiosis I
Explanation:
Reduction of the number of sets of chromosomes occurs during meiosis I.
During Meiosis I crossing over of genetic material occurs between chromosome pairs
Answer:
The possible genotypes are:

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good luck, i hope this helps :)</em>
Answer:
Description
An electron cloud is the region of negative charge surrounding an atomic nucleus that is associated with an atomic orbital. It is defined mathematically, describing a region with a high probability of containing electrons.
Answer:
maybe something like:
1. what caused their extinction primarily
2. why could they not survive through the situation they were in
3. how do we know what specific event occurred using only the resources we have today
Explanation:
I hope this gave you a bit of insight :))!
The answer to the presented problem together with the options available would be A. gene.
A gene is the basic unit of heredity in a human being. This is where all information about the human is stored and is transferred from the parents to the offspring. Characteristics and behaviours become redeeming qualities to a specific line of heredity. With this, studies have paved way to understanding more about evolution and the past. This might be used to enhance human capabilities and make us more superior to any other race.