BIOLOGY HIGH SCHOOL

What does dna replication mean?

Answers

Answer 1
Answer: It's what the name suggests. Multiple strands of DNA come from the one DNA. This needs to happen so that inheritance can happen.

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Which of the following processes only occurs in eukaryotic mRNA transcript modification and gene expression?A. mRNA, tRNA, and rRNA are transcribed.
B. Transcription can begin as soon as translation has assembled the first few amino acids in the polypeptide.
C. A poly-A tail is added to the 3' end of an mRNA, and a cap is added to the 5' end.
D. RNA polymerase binds to the promoter.

Answers

C. A poly-A tail is added to the 3' end of an mRNA, and a cap is added to the 5' end.

At the end of cytokineses, how many daughter chromosomes will be found in each cell?

Answers

In mitosis which produces body cells, each daughter body cell would have 46 chromosomes. 
But during meiosis which produces sex cells, each daughter sex cell would have 23 chromosomes. 

Many of the biochemical reactions that occur within cells are catalyzed by enzymes. Which of the following statements is true about most enzyme-assisted reactions?A. Most enzyme-assisted reactions can take place at any temperature.

B. Most enzyme-assisted reactions are reversible.

C. Most enzyme-assisted reactions can take place only within a ribosome.

Answers

The right answer for the question that is being asked and shown above is that: "A. Most enzyme-assisted reactions can take place at any temperature." The statement that is true about most enzyme-assistedreactions is that A. Most enzyme-assisted reactions can take place at any temperature.

Most enzyme-assisted reactions are reversible

Carbon dioxide is a waste product carried by the _____ back to the heart.A : Arteries
B : Veins

Answers

Pretty sure its Veins

What are the three main body segments of insects? Select one of the options below as your answer:a. Head, mandible, thorax
b. Head, thorax, abdomen
c. Mandible, thorax, legs

Answers

a.head,thorax,abdomen

Answer:

Head, thorax, abdomen

Explanation:

It is correct

Which of the following statements is true? In the lysogenic cycle, the virus uses the host cell to make new viral parts.
In the lytic cycle, the virus hides in the host’s DNA.
Stress can cause a virus to switch from the lytic cycle to the lysogenic cycle.
Stress can cause a virus to switch from the lysogenic cycle to the lytic cycle.

Answers

Answer:Option d  

Explanation:  

The virus cannot live in the environment without the host cell. They need the host cell for their survival.The virus incorporates its genetic material in the genetic material of the host cell to live. They opt for lytic cycle or lysogenic cycle.

Due to environmental stressors such as the starvation or exposure to chemicals may cause the virus to switch from the lysogenic cycle to lytic cycle.

Stress can cause a virus to switch from the lysogenic cycle to the lytic cycle.
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