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OlgaM077 [116]
3 years ago
15

All eukaryotic cells have a.

Biology
1 answer:
zaharov [31]3 years ago
5 0

Answer:

All eukaryotic cells have a membrane that covers them, internal fluid and a central nucleus, so the correct answer is option d (All of the above).

Explanation:

Eukaryotic cells are those that possess a plasma membrane that surrounds them, acting as a semi-permeable membrane to the passage of substances, in addition to possessing the capacity to receive external signals.

The cytoplasmic membrane of eukaryotic cells is related to an endomembrane system, associated to cytoplasmic organelles and to the central nucleus, which stores genetic information, in the form of DNA.

The eukaryotic cell cytoplasm is fluid and serves as a support for the organelles, as well as all the chemicals suspended in it.

<u>The existence of true nucleus and organelles is what defines a eukaryotic cell and differentiates them from prokaryotic cells</u>.

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You are studying 5 genes: a, b, c, d, and e. In an attempt to map them, you perform a series of two-point crosses with the resul
ZanzabumX [31]

Answer:

Gene order will be- a,d,e,b,c

Explanation:

Gene mapping refers to the arrangement of genes on the chromosomes. The genes can be mapped on the chromosome by calculation the recombination frequency in the hybrid crosses.

The recombination frequency can be represented on the chromosomes to show the distance between the genes which is measured as centimorgan. 1 percent recombination is considered 1 cM.

In the given question, since the distance between the gene has been provided therefore the genes can be mapped on the chromosome.

This could be done in the following manner-

1. Take the highest value of distance- 21 m. u between a and c.

2. Now take c as a reference point and arrange the other distance measuring distance from the c.

3. On this basis- c-d, c-e and b-c can be plotted.

4. Now, plot other values taking an as a reference point and plot the values b-e, a-b, a-d.

5. the genes will be arranged in the order a,d,e,b,c.

Thus, a,d,e,b,c is the correct answer.

7 0
3 years ago
What organelle creates rRNA for synthesizing ribosomes?
kicyunya [14]

Answer:

nucleus

Explanation:

The nucleus contains the cell 's DNA and directs the synthesis of ribosomes and proteins.

7 0
3 years ago
Read 2 more answers
What do your cells then do with all of that oxygen that was just delivered by your blood
Fittoniya [83]
Haemoglobin takes oxygen and gives it to the cells thus hemoglobin is free to carry more oxygen.
5 0
3 years ago
Help me solve it pls I am behind ​
nikdorinn [45]

Answer:

If you give the options maybe I can answer

3 0
2 years ago
What is the difference between a squid and a cuttlefish?
bogdanovich [222]
Hey there,
From what I can recall, i can remember 2 differences.
1) Some cuttlefish have external shells, but squids have an internalized bone like structure called 'Pen'
2) <span>Cuttlefish are a group of animals of the Class: Cephalapoda, while squids are a type of cuttlefish.

Hope this helps :))

~Top
</span>
3 0
2 years ago
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