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Schach [20]
3 years ago
15

Please help as soon as possible DUE TOMORROW ​

Biology
1 answer:
Readme [11.4K]3 years ago
4 0

Answer:

D. loose layers bond together over time.

Explanation:

The sediment in sedimentary rocks are formed when weather and erosion break down the rock into loose material.

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What is an allele?
Natali [406]

Answer: Just did the lesson on this, the answer is  C.

Explanation:An allele is one of the possible forms of a gene. Most genes have two alleles, a dominant allele and a recessive allele. If an organism is heterozygous for that trait, or possesses one of each allele, then the dominant trait is expressed. ... So a gene is a particular region of your DNA that controls a specific trait.

6 0
3 years ago
In Drosophila melanogaster, the recessive allele for the sepia locus (se) causes flies to have very dark colored eyes. The reces
Dima020 [189]
The answer will be E
5 0
3 years ago
Many citizens are concerned about the potential negative impact on human health of consuming genetically modified organisms (suc
BabaBlast [244]

The transmission of antibiotic resistance, toxicity, and allergenicity are all known to be major health risks associated with GM foods.

7 0
2 years ago
Suppose a mutation affects an enzyme that is required to repair the damage to DNA caused by the loss of purine bases. This mutat
Vsevolod [243]

Answer: There's no way one species can become another through depuranization, which is a random change.

Explanation:

In cells, environmental (chemical or physical) and metabolic factors can cause DNA damage, which is the molecule that stores genetic material. In these cases, the damage done to the DNA is repaired.

<u>Many of these lesions cause a permanent structural damage to the DNA, which can alter the ability to be transcribed, or can cause mutated genes to be transcribed resulting in another protein.</u> Particularly, depurination is the hydrolytically cleavage of the β-N-glycosidic bond between the purines (adenosine or guanosine) and the carbon of the sugar group found in the DNA. This mutation results in the loss of the purine base and leads to the formation of apurinic site and results and severely disrupts the DNA structure. The most important causes of depurination is the presence of endogenous metabolites inside the cell as a result of various chemical reactions and due to the presence of mutagenic compounds. However, these apurinic sites <u>are usually repaired by portions of the base excision repair (BER) pathway</u>.

There's no way one species can become another through depuranization, which is a random change. Because it is highly unlikely that 5000 mutations are able to accumulate every day without being repaired, and that they are just the right mutations to have the same characteristics as a chimpanzee. <u>If the depurinations are not repaired, the cell will most likely either die or become cancerous.</u>

5 0
2 years ago
Intrinsic factor A. increases gastric motility. B. causes the release of stomach acid. C. facilitates the absorption of vitamin
iren2701 [21]

Answer:

C. facilitates the absorption of vitamin B12.

Explanation:

The Intrinsic factor is a substance that is produced by the stomach and it has the important function of producing vitamin B12 which is necessary for life. Vitamin B12 is used in the production of mature red blood cells. It also improves the function of the nervous system. The production of this intrinsic factor is a very vital role of the stomach because, in the absence of a stomach, for example, in the case of a gastrectomy, a person can only survive if he is given injections of Vitamin B12.

The stomach also serves as a holding center for food and eventually delivers the food to the small intestine and the duodenum.  

7 0
3 years ago
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