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Naya [18.7K]
4 years ago
8

What is the composition of a DNA fragment?

Biology
1 answer:
Firlakuza [10]4 years ago
4 0

Answer:

DNA is formed by the union of many deoxyribonucleotides, it is composed of two long chains of polynucleotides, which are kept together due to the interactions of their nitrogenous bases.

Explanation:

DNA is the carrier of genetic information, it can therefore be said that genes are made up of DNA. Nucleotides are the monomeric units of DNA and RNA, also known as nucleic acids, which are responsible for storing and transmitting genetic information from one generation to another. The primary structure of DNA is the deoxyribonucleotide sequence of one of the strands. Genetic information is contained in the exact order of nucleotides

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What is one reason why the abundance of angiosperms could have helped small mammals be successful and produce more offspring?
BlackZzzverrR [31]

Answer:

The reason why the abundance of the mammals be successful is that it provides food and oxygen for the survival of the mammals.

These plants also attract the mammals which helps in mating of the animals and producing more offspring.

A healthy animal will only lead to the producing more healthy offspring and by getting proper food the animals will produce successful offspring.

3 0
4 years ago
Both normal and transient flora can become opportunistic pathogens. True or False
ElenaW [278]

Answer:

True

Explanation:

Normal flora are  microorganisms that are regarded as resident organisms, which can be found on or in an individual and do not cause any disease.

the transient flora refers to microorganisms that are found on the skin or the hands which are there through direct contact with person or object, and are easily removed by routine hand hygiene. Example is Norovirus that can cause stomach flu.

Opportunistic pathogens are microorganisms such as the bacteria and virus, which can only cause infection when the immune system is down. This means that , these organisms can not cause any infection as long as the immune system is ok.

In this case, the normal and transient flora like Norovirus can only cause infection when the immune system is down. That is why they are regarded as opportunistic pathogens.

3 0
3 years ago
Read 2 more answers
What would be the result of a disease that causes excessive lactic acid accumulation in the muscles?
Lelechka [254]

Answer:

Muscles would fatigue easily.

Explanation:

The disease is called Lactic Acidosis.

Your body needs oxygen in order to break down glucose for energy during exercises, however, during intense exercise, there may not be enough oxygen available to complete the process which results in a substance called lactate being made. This lactate is converted to energy without using oxygen, but it builds up in your bloodstream faster than you can burn it off causing your muscles to fatigue

3 0
4 years ago
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Which term is associated with asexual rather than sexual reproduction A).zygote. B).conjugation C).bomary fission. D). Alternati
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The correct answer would be C. I hope this helps you! <3
3 0
3 years ago
People with panic disorder show dysregulation of norepinephrine systems in an area of the brainstem called the:_________.a. basa
antiseptic1488 [7]

Answer:

B. locus ceruleus.

Explanation:

A nucleus present in the pons of brainstem responsible or involved in physiological responses to panic and stress is known as locus ceruleus.

Basically, locus ceruleus is responsible for the primary production of norepinephrine in the brain. The nucleus transfers the norepinephrine to whole cerebral cortex along with various other structures like amygdala, cerebellum, hippocampus, and spinal cord.

So, when there is a panic disorder due to norepinephrine dysregulation at the brainstem area which will be definitely locus ceruleus.  

4 0
3 years ago
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