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Vladimir [108]
3 years ago
12

How many nucleotides make up one strand of dna in human cells

Biology
1 answer:
JulijaS [17]3 years ago
4 0

Answer:

4 nucleotides.

Explanation:

Basic building block of DNA is known as nucleotides, and they are composed of one phosphate molecule, a sugar, and four bases (guanine, adenine, cytosine, and thymine).

Purine bases is adenine and guanine they contain double ring structure, and pyrimidine bases is cytosine, and thymine they contain single ring structure. The nucleotide bases of DNA line up together, so that the phosphate, and sugar molecule make two long backbones, and each strands of DNA.

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A elephant cell has 20 chromosomes. how many chromosomes will the cell have just before mitosis begins in the elephant cell?
lora16 [44]

The elephant cell will have 20 chromosomes.

Cells undergo interphase before getting to the mitotic phase. At the S phase of the interphase, the amount of DNA in the cell is double by replication. However, the number of chromosomes remains intact.

Thus, the cell gets to the mitotic phase with the same number of chromosomes that is usually present in normal vegetative cells of the animal.

More about mitosis can be found here: brainly.com/question/13536882?referrer=searchResults

8 0
3 years ago
The fetal shortcut from the right atrium to the left atrium is the
Anarel [89]
The answer is called the foramen ovale. Hope this helps.
8 0
4 years ago
Adrian is recovering from schizophrenia. She has been taking high doses of antipsychotic medications for a very long period of t
Tamiku [17]

Answer:

Tardive dyskinesia.

Explanation:

Schizophrenia may be defined as the condition in which the individual is unable to accept reality and interpret the reality in different ways. The symptoms are hallucination, disrupted speech and nehativity.

Tardive dyskenia is the medical condition in which the individual cannot control their hand and body movements. This condition might occur due to the medication that have been taken to treat the schizophrenia. The drugs inhibits the effects of dopamine that causes tardive dyskenia.

Thus, the correct answer is option (b).

8 0
3 years ago
Read 2 more answers
In the Linnaeus system, a(n) ________ contains similar phyla.
LUCKY_DIMON [66]
In the Linnaeus system a(n) kingdom contains similar phyla.
4 0
3 years ago
A slower-than-normal heart rate is called A slower-than-normal heart rate is called tachycardia. premature contractions. bradyca
stealth61 [152]

Answer: it is called Bradycardia.

Explanation:

Bradycardia is a slower that normal heart rate. The heart rate of adult human usually beats between 60 to 100 per minutes . A testing heart rate less than 60 beats per minutes is called Bradycardia with the exception of Adult in deep sleep. It could be a serious problem if the heart could not pump oxygen rich blood to the body. It is caused by damaged of heart tissues from heart disease or due to aging. Heart disorder from birth or infection of heart tissue

7 0
3 years ago
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