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adoni [48]
3 years ago
8

Someone help me please

Biology
1 answer:
frez [133]3 years ago
5 0
1. Two genetically identical copies of DNA

2. Finds an error in DNA, removes the incorrect nucleotide and replaces it with a correct one.

3. It is used as a copy/ "template" for replication in order to have two identical copies of DNA.

4. DNA helicase unwinds DNA double helix and Topiosomerase ensure there isn't too much unwinding.

5. Replication has a built on proofreading system - DNA polymerase removes the incorrect nucleotide and replaces it with a correct one.
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Explain how dominant and recessive alleles for the trait of height determine if a pea plan will be tall or short.
Gelneren [198K]

Answer:

If the plant has two dominant alleles for stem height (TT) then it is tall. If the plant has two recessive alleles for stem height (tt), it is short. If the plant is a hybrid (Tt), it is tall.

Explanation:

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3 0
3 years ago
What is the volume of a cell, in other words, what cell part are we talking about?
Hunter-Best [27]

Answer:

100 µm^3

Explanation:

the volume of a human cell is 100 µm^3

5 0
3 years ago
Which of these is a function of the blood? a) carry oxygen to the cells b) carry wastes to be removed c) both are functions of b
damaskus [11]

Answer:

c) Both are functions of blood, that is, to carry oxygen to  the cells and also remove wastes from the body.

Explanation:

Blood is a form  of connective  tissue and is made up of red blood cells,  white blood cells, platelets and blood plasma. The red blood cells contains a metallo-protein structure known as hemoglobin. This hemoglobin binds to the oxygen and carry them to the cells and the tissues for proper functioning of them. The waste products like carbon dioxide is carried by the blood from the body tissues to expel it out from the body.

7 0
3 years ago
Prokaryotes whose cell walls do not contain peptidogly can
masya89 [10]

Answer:

Archaebacteria

Explanation:

Archaebacteria is a group of single-celled organism present on the earth which are thought to be descended from the ancient bacteria.

These bacteria can survive the extreme or harsh conditions present on the Earth-like in the hot springs.

The archaebacteria cell membrane is made up of ether-linked phospholipids which are ester-linked in Eubacteria and eukaryotes.  The sugar present in the archaebacteria is very similar to peptidoglycan in composition but it is not peptidoglycan.

Thus, Archaebacteria is the correct answer.

4 0
3 years ago
What is a carpal? Where is it located in a typical flower?
insens350 [35]
A carpel on a typical flower is located on the bud tips, what I mean is that where the stamen is nearly right beside it is the carpel. A carpel is like the reproductive organism of a flower.
8 0
3 years ago
Read 2 more answers
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