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4 years ago

Cell a has half as much dna as cells b, c, and d in a mitotically active tissue. cell a is most likely in

1 answer:

8 0

I believe that Cell a is most likely in G1 phase.
The G1 phase, or the gap 1 phase, is the first of four phases of the cell cycle that takes place in eukaryotic cell division. In this part of interphase, the cell synthesizes mRNA and proteins in preparation for subsequent steps leading to mitosis. The phase ends when the cell moves into the S phase of interphase.

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26. Suppose the two guanosine (G) nucleotides in #3 above were changed to two cytosine (C) nucleotides. What is the new amino ac

seropon [69]

Answer:

This question is incomplete

Explanation:

This question is incomplete but the completed question can be found in the attachment below.

During protein synthesis, a sequence of three mRNA nucleotides (called codons) correspond to specific amino acids. From the question, the change in guanosine nucleotides will change the sequence as follow

DNA: T--A--C--A--A--C--T--A--C--T--T--C--T--T--T--C--T--T--A--A--A

mRNA: A--U--G|-U--U--G|-A--U--G|-A--A--G|-A--A--A|-G--A--A|-U--U--U

Amino Acids: met -- leu -- met -- lys -- lys -- Glu -- Phe

The new amino acid sequence is represented above from the new DNA sequence.

3 0

3 years ago

What is natural selection? How does this work on organisms in nature? (should be at least 3 sentences)

BigorU [14]

Answer:

The natural selection is a theory made by Charles Darwin where animals better adapted to their environment tend to survive and produce offspring. for example, there are about 50% of beetle that are green and 50% orange. If crows tend to eat green beetles more, there will be more orange beetle to produce offspring so there wood then be less green beetles to be eaten by crows.

An environment can change over time and this will cause for the animals living in the environment to adapt as well. These changes will occur when an animal with undesirable traits don't survive to reproduce. The offspring of individuals that do survive to reproduce will inherit their parent's desirable traits. Over many generations, the desirable traits will be seen in more-and sometimes all- of the individuals in the population

Explanation:

That is the natural selection told in my words, but please do your best to rewrite your own sentence/paragraph. Copying another's work is called plagiarism and any teacher can automatically give you a 0% for this.

Anyway, goodluck.

Please mark as Brainliest and feel free to ask for any more information.

~~~They Speak To Me~~~

4 0

3 years ago

A unicellular, prokaryotic organism is discovered by scientists. Are these characteristics enough to place it in a domain, or is

icang [17]

Answer:

more information is needed, because organisms from both the bacteria and archaea domains are prokaryotic and unicellular.

Explanation:

Hope it helps

4 0

3 years ago

Read 2 more answers

If a molecule of DNA has 30% Adenine how much of the other bases will be present?

anygoal [31]

Answer:

If a DNA molecule has 30% Adenine the percentage of the other bases is Thymine: 30% Cytosine: 20% Guanine: 20%.

Explanation:

When the percentage that a base has in a DNA molecule is given, the percentage of the other bases can be known using the Chargaff's base pair rule.

A DNA molecule has the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.

Chargaff was able to establish that in a DNA molecule the ratio of purine : pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, taking into account the complementarity of bases.

Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:

Adenine 30%. 
Thymine 30%. 
Cytosine 20%. 
Guanine 20%. 
Total ..... 100%

In this case, the Chargaff rule is useful to determine the percentage of nitrogenous bases that exist in a DNA molecule, knowing the percentage of a single base.

7 0

3 years ago

What dose cystolic mean?

mylen [45]

That means the fluid portion of the cytoplasm exclusive of organelles and membranes.

5 0

3 years ago