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Biology
IB

What is the function of the mitochondria?

The primary role of the mitochondria is to produce the energy currency of the cell, ATP, through respiration, and to regulate cellular metabolism. The processes involved in ATP production are collectively...

Answered by Jack H. Biology tutor
1004 Views

Explain the roles of specific enzymes in prokaryote DNA replication. [7 marks]

DNA replication is the same in eukaryotes and prokaryotes; the question just emphasizes that the process depends on enzymes and their functions need to be explained.DNA gyrase (o...

Answered by Hristo S. Biology tutor
4877 Views

Describe blood circulation from the heart to the rest of the body

Deoxygenated blood reaches the heart and enters into the right atrium. Pressure in the right atrium increases which causes the right atrioventricular valve to open allowing the passing of the blood into t...

Answered by Phaedra T. Biology tutor
1608 Views

Explain Darwin’s theory of evolution by natural selection.

In an animal population most organisms produce more offspring than can survive to adulthood. For this reason, there is competition with each other for resources, such as food, shelter and mates, in order ...

Answered by Sevastiani-Zoi P. Biology tutor
1559 Views

Colour blindness is sex linked and recessive. What is the probability that the son of a carrier female and an unaffected male will be affected by the condition?

The key bit of knowledge required to answer this question is that colour blindness is an X chromosome linked condition. Say the allele for normal vision is (X^N) and the allele for colour blindness is (X^...

Answered by Saahil B. Biology tutor
1372 Views

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