The question is asking to choose among the following must occur during S phase of the cell cycle so that two daughter cells can be produced during M phase, base on that I would say that the answer would letter A. The DNA must be joined. I hope you are satisfied with my answer
Protons and neutrons make electrons
Answer:
First Trimester stage of Pregnancy
Explanation:
The first 3 months of pregnancy is called the First Trimester.
This stage is the most critical stage as there is a lesser chance of miscarriage after getting past this stage and the major organ system are formed. The baby’s brain isn’t fully developed yet and the sex is still unknown at this stage. The baby also weighs less due to the underdevelopment.
Answer:
B) Nucleotide
Explanation:
This is because Nucleotides are made up of three things: Phosphate, Sugar, and a Base. Nucleotides are what make up DNA and RNA, and are considered the basic building blocks of DNA and RNA. To get a little off topic, the 4 bases types of bases are adenine, thymine, cytosine, and guanine.
I hope this helps!
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PLEASE MARK BRAINLIEST!</u></h2>
<span>I suspect this question should read "How long does a red blood
cell live." A red blood cell lives for between 100 and 120 days. It
takes 7 days for a new red blood cell to develop from stem cells. Stem
cells are similar to base cells. They can also be seen as a general
template from which specialized cells are made. Stem cells can be taken
from a newborn baby's umbilical chord or extracted from an adult blood
donor's blood.</span>
