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Andreyy89
2 years ago
6

Which of the following is true regarding respiration in birds?

Biology
1 answer:
Ierofanga [76]2 years ago
4 0

idk....................,. where are the options

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A student isolates, purifies, and combines in a test tube a variety of molecules needed for DNA replication. After adding some D
aivan3 [116]

Answer:

DNA ligase

Explanation:

DNA replication is an enzyme mediated, 3-step process during which the DNA molecule produces a copy of itself. The 3 steps involved are as follows;

  • initiation
  • elongation
  • termination

<em>Initiation </em>involves the unwinding of the double helix structure of the DNA using DNA helicase enzyme

<em>Elongation</em> involves binding of RNA primer to the DNA strands and addition of bases to the primer<em> </em>to elongate the new chains. Bases are added to the leading strand continuously while the lagging strand is replicated in short segments (okazaki segments).

<em>Termination</em> involves the unbinding of RNA primer and substitution of its bases by DNA bases. The Okazaki fragments are then joined together using the DNA ligase enzyme.

<em>The short, numerous segments of DNA observed in the mixture is the Okazaki fragments of the lagging strand. This is due to the absence of the enzyme involved in the joining of these fragments.</em>

Hence, the answer is DNA ligase.

4 0
3 years ago
A person walks 12 miles in 3.0 hours. <br> What is the average speed of the person during this time?
Alexus [3.1K]

The answer is.......4!!

Explanation: All you have to do is 12/3.0 and you will get four!

4 0
3 years ago
Read 2 more answers
When we consume more proteins and wheat, the ph of the urine becomes more?
LenaWriter [7]
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is this question legit or is this website like a fun answering game?
4 0
3 years ago
The cellular processe diffusion does not requir
JulijaS [17]
It too does Not require cellular energy. When molecules cannot move through a cell membrane passively, the Cell uses a process called_____________. This process uses_______________ found in the cells Membrane to pass particles and reach equilibrium.
3 0
3 years ago
"Osteocytes and layers of extracellular matrix, which are concentrically clustered around a central canal, for a cylinder-shaped
melisa1 [442]

Answer:

Osteon

Explanation:

Bone tissue may be of two types; compact bone tissue that form the outer hard covering of bones and spongy bone tissue that form inner soft portion of bone. Osteon are found in compact bone.

Osteons are cylindrical structures composed from clustre of Osteocytes and layers of extracellular matrix around a central canal connected by canaliculi for the transportation of blood. The haversian canal is surrounded by lamella that comprises the osteon. Osteons run parallel to long axis of bones and present in bones of many mammals, reptiles and birds. In some bones the stress or pressure in applied from few directions and osteons are aligned in that direction so they provide protection from bone bending or fracturing from compressive forces.

7 0
3 years ago
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