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Advocard [28]
3 years ago
7

Who was the first person to see cells?

Biology
1 answer:
Stella [2.4K]3 years ago
6 0
<span>Robert Hooke was the first person to see cells.</span>
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Suppose that a certain gene functions to enforce a checkpoint on the cell cycle. A mutation causing the loss of this gene's func
chubhunter [2.5K]

Answer:

The correct answer is C. be more likely to have cancer at some point in his/her life.

Explanation:

Cell cycle checkpoints are controlled by different proteins which are coded by different genes. They are important in cell cycle regulation and stops cell cycle immediately if they find any problem in the cell like mutation.

The cell cycle will not be continued if the problem does not solve and cell death will occur which prevents cancer by preventing the mutation to spread into new cells.  

Therefore if a mutation occurs in certain genes that enforce a checkpoint on the cell cycle then the mutated gene will pass in new cells and the mutated cells will grow uncontrollably due to no checkpoints so the person will probably have cancer at some point in his or her life.

7 0
3 years ago
The second messenger in the following G-protein-linked-receptor pathway is signal moleculeG protein linked receptor activated G
melamori03 [73]

Answer:

Answer is D - cAMP.

Explanation:

cAMP is a small molecule that functions as an intracellular signaling molecule - a second messenger. The first messenger would be the thing that activated the GPCR (e.g. a hormone). The GPCR is a signal transducer (converts extracellular signal to intracellular signal). Once activated, the GPCR activates  adenylate cyclase which can be called a signal effector - it is an enzyme that produces cAMP.

7 0
3 years ago
What is the average atomic mass an average of?
slamgirl [31]

Answer:

The average atomic mass (sometimes called atomic weight) of an element is the weighted average mass of the atoms in a naturally occurring sample of the element.

Explanation:

please give me a heart. anyone good at math just posted my question

4 0
2 years ago
Which is an abiotic factor of the boomslang's environment?
jonny [76]
A. The sun
Abiotic means fake or not living. Trees, grass, and people are living, also know as biotic. The sun is not living, it’s just a ball of hot gas, which is not living.
8 0
2 years ago
Macromolecule Suggested percentage of diet Actual percentage of diet Carbohydrates 45–65% 70% Lipids 20–35% 5% Proteins 10–35% 2
SIZIF [17.4K]
10-35%25% based on the table the decrease of the table is 25%25%.Good Luck.
5 0
3 years ago
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