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ankoles [38]
3 years ago
11

Describe one problem that scientists must overcome to develop a vaccine for HIV

Biology
1 answer:
NikAS [45]3 years ago
5 0

Answer:

they must focus on it instead of focusing on useless information

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The general term for a large molecule made up of many similar subunits is
Mnenie [13.5K]
It is A) a polymer.

Because Polymer is a large molecule and made of smaller molucules and they are called monomers

-Hope this helps
7 0
3 years ago
Difference between osmosis, diffusion and plasmolysis
pickupchik [31]
Osmosis is the movement of water particles from an area of high concentration of water particles to an area of low concentration of water particles across a semi permeable membrane

Diffusion is the movement of particles from an area of high concentration of particles to an area of low concentration of particles across a partially permeable membrane

Plasmolysis is the shrinking of the cytoplasm if a plant cell in response to diffusion of water out of the cell and into a high salt concentration solution as the cell membrane would pull away from the cell wall

Hope this helped
7 0
3 years ago
Examine the diagram of genetic material found in the cell.
iVinArrow [24]
They share the same thing
7 0
2 years ago
What are 2 examples of tissue found in plants
Andru [333]
Two examples of tissue found in plants are xylem and phloem
4 0
2 years ago
Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Wh
Molodets [167]

Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

4 0
2 years ago
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