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Dima020 [189]
3 years ago
9

Name three types of gene mutations ​

Biology
1 answer:
Rudik [331]3 years ago
8 0
Base substitutions, deletions and insertions.
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When a cell divides each daughter cell receives its own copy of
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X and y chromosome thats when a cell divides each daughter
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Tropical rainforests have many species that are found in great abundance. A study in the Brazilian rainforest found 487 tree spe
Yuri [45]
C: rainforest are biologically more diverse than ecosystems.

Explanation: the reason why this is correct is because of the vast ratio of American and Europeans animal/plant species compared to Brazil alone. They have much more diversity hence having more biodiversity. The vast amount of plants and animals are superior to other countries.
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3 years ago
What is the function of the cell membrane
swat32
It's pretty straight foward it controls what gets in and out

Cell Membrane - The membrane of the cell forms an outer shell that protects it. It's function is to be semi-permeable, which means that it separates the cell from outside elements and only allows certain molecules in.

Centrosomes<span> - Centrosomes organize microtubules, which are like hollow rods that give the cell its support and shape.</span>

Centrioles -<span> Centrioles are cylinders made of proteins that are found in a cell's centrosome.</span>

<span>Cytoplasm </span>- This is the jelly-like substance that makes up the inside of the cell. It's not an organelle, but a material that can be found within the membrane.

<span>Endoplasmic Reticulum </span>- The endoplasmic reticulum, or ER for short, forms the transport system for the important proteins in the cell, like RNA. ER can be split into two groups: smooth ER and rough ER.

Golgi Complex<span> - The Golgi complex, which is also known as the Golgi apparatus and named after the person who found it, is like the post office or packing center of the cell. It prepares proteins that need to be shipped off to specific destinations.</span>

<span>Lysosomes </span>- Lysosomes are enzyme-filled sacs that digest nutrients and cell wastes.

<span>Mitochondria </span>- This organelle has an important job. It keeps the rest of the cell going by supplying energy in the form of adenosine triphosphate (or ATP).

<span>Nucleus </span>- The nucleus is a soft sac of the cell that has the responsibility of carrying its genetic code (also known as DNA).

<span>Nucleolus </span>- Within the nucleus is another nucleus, or nucleolus, where RNA is formed. RNA carries the messages or instructions that DNA provide.

Ribosomes<span> - After RNA leaves the nucleolus and nucleus, it goes through the endoplasmic reticulum to the ribosomes, where protein synthesis takes place.</span>

7 0
4 years ago
Read 2 more answers
Membranes can be found in all of the following EXCEPT __________. A Option A: a ribosome B Option B: a mitochondrion C Option C:
ASHA 777 [7]

Answer:

The correct answer is A. ribosomes

Explanation:

Eukaryotic cell contains both membranous and non-membranous organelles. The membranous organelles are the nucleus, endoplasmic reticulum, Golgi apparatus, chloroplast(plants), mitochondria, lysosomes, etc.

Ribosomes, centrosomes are the non-membranous structures. Ribosomes are found in both eukaryotic and prokaryotic cells. In prokaryotes 70s ribosomes are present and in eukaryotes 80s ribosomes are present. Prokaryotes do not have a membrane-bound nucleus and organelles.

Ribosomes helps in protein synthesis in both prokaryotes and eukaryotes. Therefore the right answer is the ribosome.

3 0
3 years ago
Which is in the shape of a double helix?
Ghella [55]
Deoxyribonucleic Acid, or DNA is in the shape of a double helix
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