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Cloud [144]
3 years ago
11

Ddt was banned from use as a pesticide in the united states because

Biology
2 answers:
mixas84 [53]3 years ago
5 0
The answer is D. All of the above . Hope this helps!
netineya [11]3 years ago
3 0
The answer to your question should be D. all of the above
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Imagine that five hypothetical genes are arranged on a chromosome in the following order: G--H--I--J--K. Which two genes are mos
andrezito [222]

Answer:

G and K

Explanation:

Crossing-over is a genetic phenomenon that occurs in meiosis, specifically, Prophase I. It is when chromosomal segment (genes) are exchanged between non-sister chromatids of homologous chromosomes. Crossing-over occurs only to genes that are UNLINKED i.e. genes located on different chromosomes or far apart on the same chromosome.

This unlinked genes are said to have the highest RECOMBINATION FREQUENCY. Crossing-over allows genes on the same chromosome but far apart from each other, assort independently, which allows alleles to be recombined on the same chromosome. This phenomenon does not occur to genes that are close on the same chromosome as they will be inherited together as a unit.

In this case, G and K are the farthest apart, hence, they will have the highest RECOMBINATION FREQUENCY i.e. the likelihood for homologous crossing-over to take place during meiosis.

4 0
3 years ago
The sunflower plants shown are the same species. The differences in
tia_tia [17]

Answer:

The sunflower plants shown are the same species. The differences in

height among the plants is an example of variation

Explanation:

Variation entails difference in a condition which is exactly what happened as regards sunflower plant with different height

5 0
3 years ago
Which one of the following is an example of the chemical modification of an active pharmaceutical ingredient? Group of answer ch
Alexeev081 [22]

Answer: Combining a basic API with citric acid to produce the citrate salt of the API.

Explanation:

Chemical modifications refers to the processes that involve changes in the general composition of drugs to produce another entity with different chemical properties.

From the answer, Basic API combine with citric acid to produce the citrate salt of API which have different chemical properties from the reactants.

8 0
3 years ago
Complimentary strand of C T T A G G C T T A C C A
Marta_Voda [28]

Answer:

G A A T C C G A A T G G T

Explanation:

C=G

G=C

A=T

T=A

6 0
3 years ago
Which statements describe the importance of the nitrogen cycle of livings things?
const2013 [10]

Answer:

It helps cells to make proteins.

It provides a source of water

It provides form of usable Nitrogen.

It removes carbon dioxide from the atmosphere.

It destroys harmful bacteria.

5 0
3 years ago
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