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denpristay [2]
3 years ago
8

In all of the following characteristics, prokaryotes differ from eukaryotes except in cell size. nucleic acids as the hereditary

material. multicellularity. organelles. chromosomes.
Biology
1 answer:
antoniya [11.8K]3 years ago
6 0

Answer:

Nucleic acids as the hereditary material

Explanation:

The nucleic acids are deoxyribonucleic acids DNA and ribonucleic acids RNA. DNA is an hereditary material that carry information and it is found both in eukaryotic cells and prokaryotic cells. It is found in the nucleus of eukaryotic cells but it is not enclosed in prokaryotic cells.

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3 years ago
If the egg cell of animal has 25 chromosomes,how many chromosomes would be in a heart cell?
diamong [38]

Answer:

50

Explanation:

egg cells and sperm cells contain half of the chromosomes of a regular cell in an organism, so the number of chromosomes in a heart cell must be double of the chromosomes in a egg cell.

5 0
2 years ago
Mitosis is a type of cell division. organize the images below to show the steps of mitosis.
barxatty [35]

Answer:    

The correct order is F, E, C, G, H, A, D, and B (look at the image in the attached files)

Explanation:

  • <u>Interphase</u><u>:</u> Stages G1, S, and G2. At this point probably, the chromatin duplication has already occurred, but it is still lax or dispersed. It has not condensed yet. Two pairs of centrioles are outside the nucleus (FIGURE F)  
  • <u>Prophase</u>: Centrioles move forward to the opposite poles of the cell. Chromatin is condensed and individual chromosomes are now visible. The nuclear membrane breaks into many pieces. Spindle apparatus -microtubules- forms. (FIGURE E)
  • <u>Metaphase:</u> The polar and the kinetochore fibers drive each individual chromosome to the equatorial plane. This stage ends when all the chromosomes are completely arranged in the medial area.  (FIGURE C)
  • <u>Anaphase</u>: Sister chromatids separate and move to the opposite poles of the cells, driven by the microtubules. In each pole, there are a pair of centrioles (FIGURE G and H).
  • <u>Telophase</u>: The nuclear membrane rearranges. Each sister chromatid becomes now a new chromosome. There is a pair of centrioles outside each of the nuclei. (FIGURE A)
  • Cytokinesis occurs at the end of the cell division. The rest of the cell is divided into two new daughter cells. Each daughter cell is an identical copy of the other cell, with the exact same genetic material (FIGURE D).
  • Decondensation of the genetic material of each new cell (FIGURE B).

5 0
2 years ago
If the force exerted on a sled is 100 N and the mass of the sled is 50 kg, what is the acceleration of the sled?
Anna35 [415]
<h3><u>Answer;</u></h3>

acceleration= 2 m/s²

<h3><u>Explanation;</u></h3>

From the second Newton's Law of motion the resultant force is directly proportional to the rate of change in momentum.

That is;

F = ma

Thus; F = 100 N, m = 50 kg

a = F/m

  = 100/50

  = 2 m/s²

8 0
2 years ago
Which of the following describes a function of the endoplasmic rectum within a cell ​
Pachacha [2.7K]

Explanation:

Endoplasmic reticulum is one of the cell organelles found in the cytoplasm of the cell. It is an important cell structure. It is made up of folded membranes.

  • In the endoplasmic reticulum protein is synthesized.
  • It helps in the transport of protein molecules to the golgi apparatus.
  • Protein is usually folded in the endoplasmic reticulum.

Learn more:

Endoplasmic reticulum brainly.com/question/2622106

#learnwithBrainly

6 0
2 years ago
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