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Tom [10]
3 years ago
5

In which organelle are the lipid components of the cell membrane assembled

Biology
1 answer:
madreJ [45]3 years ago
3 0

Answer:

The lipid components of the cell membrane are assembled in the ER, or the Endoplasmic Reticulum.

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A certain restriction enzyme digest results in DNA fragments of the following sizes: 4,000 bp, 2,500 bp, 2,000 bp, and 400 bp. S
Paladinen [302]

Answer:

Smaller the size of the DNA fragment, farther it moves during electrophoresis. The sketch of the position of the fragments has been drawn in the figure below.

Explanation:

As we know DNA is a negatively charged molecule. So during electrophoresis the fragments move towards the positive electrode because opposite charges attract each other.

Different fragment move different distances according to their size during the electrophoresis. Smallest segment travels the largest distance in the gel medium while the largest one travels least distance.

In the question there are four DNA fragments with base pairs 4000, 2500, 2000 and 400 so the smallest segment with 400bp will be farthest from the starting point and the largest fragment with 4000bp will travel least distance in the gel medium. Their respective positions are shown in the figure below. The starting point is near the negative electrode.

8 0
3 years ago
Please help me
Tju [1.3M]
I think the correct answer is c
4 0
3 years ago
What are the steps of protein synthesis and all the organelles invovled with it
IceJOKER [234]
first step in protein production is the transcription of DNA to mRNA in the nucleus. the next organelles involved are ribosomes. if the protein is not destined to the cell membrane the mRNA is translated on a cytoplasmic free-floating ribosome
7 0
3 years ago
The mass of an atom is contained primarily in its _____. A. Electron Shell B. Nucleus C. Proton D. Size
igor_vitrenko [27]
The mass of an atom is contained primarily in its NUCLEUS.
An atom is made up of three sub particles, which are proton, neutrons and electrons. The proton and the neutrons are located in the nucleus of the atom while the electron  are located outside the nucleus where they move about in continuous motion around the nucleus. The proton and the neutrons, which are located in the nucleus have the same relative mass of 1, which has been estimated to be about 2,000 times bigger than that of the electron, which has a relative mass of 0.0005. This shows that, the mass of an atom is located primarily in its nucleus. <span />
6 0
3 years ago
Read 2 more answers
3.
Nimfa-mama [501]

Answer:

the answer should be b ot ccc

5 0
2 years ago
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