Freida’s claim is accurate only under certain conditions.
<u>Explanation:</u>
Freida claims that she can determine which sex chromosome was donated by the male parent and which was donated by the female parent. This claim cannot always be valid. A female parent has homozygous sex chromosomes. Both the sex chromosomes of a female is X.
A male has one X chromosome and one Y chromosome. In reproduction a female parent always donates an X chromosome. A male parent may donate either an X or a Y chromosome. This determines the sex if the child.
If an X chromosome is donated the child will be girl with the genotype XX and if the Y chromosome is donated the child will be boy with genotype XY. Thus only in the case the child is a boy can we correctly determine which sex chromosome was denoted by the male parent and female parent.
If the child is a girl with both X chromosomes we cannot determine which X chromosome was donated by father and which was donated by mother because both are X.
The answer is lette r B observing organism that occupy
The student's conclusion was incorrect because the tropical rainforest biome has an average of 200-400 centimeters or 80-100 inches of rain a year. The correct biome based on the climatograph is temperate grassland because, on average per year, this biome has 25-75 centimeters of precipitation each year. Its temperature is ranging from 0-25 degrees Celcius.
Answer:
The answer is basically that having nerve cells reproduce can do more harm than good. Each nerve cell has a specific place in our nervous system. ... Adding new nerve cells would mess up these very specific connections in a very complex system.