The answer is <span>A. The Y chromosome doesn't experience crossing-over.
</span>The crossover of chromosomes is the exchange of genetic material between homologous chromosomes. In males, X and Y chromosomes pairs but they cannot exchange genetic material except at the ends of the chromosomes called pseudoautosomal regions. So, greatly, the Y chromosome <span> doesn't experience crossing-over.
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Through the process of elimination:
B. A mother gives X chromosome and a father gives Y chromosome to the son.
C. The mitochondria cannot be passed in the nucleus of a cell since it is another organelle.
D. It is thought that mitochondria is passed only from mother to her offspring, so they cannot vary greatly.
Answer:
First We're going to look at the benefits of synthetic food products
- To make food Taste better.
- To improve the nutritional composition of a product (Increase the vitamin content by adding ascorbic acid.
- To maintain the nutrient Composition of the food and to keep it saafe to eat.
Explanation:
Now we're going to look at the drawbacks of Synthetic food products
- Artificial food colors can cause intestinal upset and breathing problems.
Answer:
Eubacteria and Archaebacteria
Explanation:
Prokaryotes are single-celled organisms that do not have a nucleus
Eukaryotes are typically multicellular, but definitely do have a nucleus
Eubacteria and Archaebacteria DO NOT have nuclei
Fungi (think mushrooms) and Protists do have nuclei- and belong to the Eukaryote group- which means they DO have nuclei
The father is X^HY for colorblindness while the mother is X^hX^h for colorblindness, and when put in a Punnett Square the female children could only be X^HX^h. Because none of the daughters would be recessive for color blindness, none of them would be color-blind, whether they were dwarfs or not, so the answer is 0%.
