Which of the following answer choices would be a sex chromosome aneuploidy in a human? Choose 1

(Choice A)
A
A male gamete has only one Y-chromosome.

(Choice B)
B
A female gamete contains one X chromosome.

(Choice C)
C
A sperm has one X chromosome.

(Choice D)
D
An egg contains two X chromosomes.

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes