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Vsevolod [243]
2 years ago
10

What kind of reservoir shaped a lot of the Grand Canyon? How do you know?

Biology
2 answers:
Kaylis [27]2 years ago
8 0
Great reading kid hope u pass
Margaret [11]2 years ago
7 0
I dont know you tell me
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If a foreign gene is cloned into an expression host, it is important that the host itself A) not produce the protein being studi
Georgia [21]

Answer:

Answer is A. not produce the protein being studied.

Explanation:

The process of generating, creating or replicating a copy of a cell or an organism, which is genetically identical , is called cloning.

There are three types of cloning, these are

1. gene cloning... which is the process of replicating copies of genes.

2. reproductive cloning is the process of generating copies of whole organism.

3. therapeutic cloning... this process is always used when the aim is at creating or generating tissues in replacing diseased or injured tissue by producing embryonic stem cells for experiment.

8 0
3 years ago
What is a plastid? <br><br><br> No links please.
meriva

Answer:

Explanation:

A plastid is an organel that is found in the cells of plants, algae, and some other eukaryotic organisms. There are three kind of plastids; chloroplast, chromoplast, and leucoplast.

 Plastids contain pigments which is used in photosynthesis and the colour pigments that determine the colour of plant.

5 0
3 years ago
Why would archaea that grow in extreme environments be more intensively studied than those that do not?
vlada-n [284]

Answer: Possession of traits that aid their survival in extreme conditions.

Explanation: Because archaea that grow in extreme environments possess certain characteristics that aid in their survival in the extreme weather conditions. Those traits are studied regularly to improve other plants.

7 0
3 years ago
Which factor has the least impact on the potential energy or kinetic energy of an object?
Nimfa-mama [501]
Time : because the more mass the faster the speed because u know kinetic energy and height can affect potential
7 0
2 years ago
You examine an epithelial cell (skin cell) and notice the chromosomes are visible however it appears there are two nuclei in the
krek1111 [17]

Answer:

The best explanation if we observe an epithelial cell with chromosomes are visible and two cell nuclei is that the cell has just gone through telophase but not cytokinesis (option b).

Explanation:

A somatic cell, when found in mitosis, exhibits the chromosomes distributed in both poles and the outline of two nuclei in the telophase phase, just before cytokinesis.

In mitotic telophase:

  • Chromatids, which are chromosomes, are found in the cell poles.
  • It initiates the formation of the nucleus membrane.
  • The chromosomes begin to turn into chromatin.
  • Disappearance of the mitotic spindle, duplication of organelles and cytoplasmic invagination.

The division and differentiation of the nuclei in telophase is called karyokinesis. Later, cytokinesis occurs, where the daughter cells are separated.

The other options are not correct because:

<em>     a and d. In the other phases described, </em><em><u>S and G1,</u></em><em> no chromosome distribution is observed at the poles.</em>

<em>     c. A somatic cell does not experience </em><em><u>meiosis</u></em><em>.</em>

6 0
3 years ago
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