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hjlf
3 years ago
6

In 1910, Morgan did a series of experiments with the fruit fly Drosophila, an organism where females are XX and males are XY. Wh

en a mutant male fly with white eyes was crossed with a wild-type female with red eyes, none of the F1 progeny had white eyes but 18% of the F2 flies had white eyes. Unexpectedly, all of these white-eyed F2 flies were males. From these results, Morgan concluded that the white eye trait is caused by a recessive allele located on the X chromosome. Instead of fruit flies, suppose Morgan had done his experiments with grasshoppers, where females are XX and males are XO. In this case, if a male with a recessive X-linked trait was crossed with a wild-type female, what would you expect among the F2 progeny?
Biology
1 answer:
Mademuasel [1]3 years ago
7 0

Answer:

All the F2 progeny with recessive traits would be males

Explanation: This is because the x-linked trait chromosomes are recessive, The F1 when crossed would contain females but when crossed again the F2  progeny with recessive traits would be males

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lora16 [44]

A new island is formed from a volcanic eruption is an event that lead to speciation.

<h3>What is speciation?</h3>

Speciation is the evolutionary process in which in populations of organisms come to being or evolve to become distinct species. The biologist Orator F. Cook made some Discovery and term it speciation in 1906when he performed experiment on cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages.

Therefore, A new island is formed from a volcanic eruption is an event that lead to speciation.

Learn more about speciation from the link below.

brainly.com/question/2113835

7 0
2 years ago
Question 1
Nadya [2.5K]

Answer: Question 1 answer: Skin cells continually replicate

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Question 2 answer: Heart cells undergo terminal differentiation

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Question 3 answer: DNA replicates in the nucleus

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Question 4 answer: The ability to reverse terminal differentiation might affect gene expression in a complex organism

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5 0
3 years ago
Read 2 more answers
How does carbon enter the atmosphere? options: Burning fossil fuels Cellular respiration Both A and B Neither A nor B
marta [7]

Answer:

Both A and B

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Cellular respiration produces carbon dioxide.

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Both A and B.

3 0
3 years ago
What is the ph of a substance with a hydroxide{OH] of 10-6
Reptile [31]
POH = - log[OH^-]
pOH = - log[10^-6]
pOH = - (-6)
pOH = 6

knowing the ionization equation between pH and pOH in a solution at T = 25 degrees Celsius.

pH + pOH = 14
pH = 14 - pOH
pH = 14 - (6)
pH = 8.

I believe the pH of a substance with 10^-6 M of OH, would be 8.
8 0
3 years ago
After fertilization, the ovule develops into a seed. can you match the parts of the ovule with the corresponding parts of the se
Goshia [24]
After fertilization of the ovule, the megaspore develops into the food supply of the mature seed.
After fertilization of the ovule, the <em />integument develops into the seed coat.
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The ovule contains the female reproductive cells of the seed plants and when fertilized, it produces the seed. Ovules contain megasporocytes, cells that produce megaspores through cell division. An integument is a layer that protects and surrounds the ovule. After fertilization, the integument protects and surrounds the seed. After fertilization, the ovule contains a diploid zygote which develops into an embryo.
8 0
3 years ago
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