Top answers

Biology
A Level

What is the difference between the primary and secondary immune response?

The Primary Immune Response occurs at first contact with the pathogen. 

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DG
29442 Views

What are the key steps in the light dependent reaction of photosynthesis?

  1. Light energy from the Sun excites electrons in chlorophyll and the excited electrons are emitted.2. The chlorophyll molecule is now positively charged and chemically less stable. The lost electrons ...
AA
Answered by Aditi A. Biology tutor
21472 Views

What are the steps involved in the mark-release-recapture technique and which factors does it rely upon?

Mark-release-recapture is a technique used to estimate the size of a population of a particular species. The steps involved are:1. Capture and count animals.2. Mark them in a way which is not toxic/harmfu...

AA
Answered by Aditi A. Biology tutor
38330 Views

What are the different types of epistasis?

Epistasis occurrs when one allele of a gene masks the expression of alleles of another gene.

When there is no epistasis a dihybrid cross (two characteristics) of two heterozyg...

OP
Answered by Olivia P. Biology tutor
50516 Views

What factors affect the speed at which an action potential travels?

There are several factors affecting the rate and speed of an action potential:

1. Myelin sheath - This covers some of the nodes and acts as an electrical insulator where the a...

Z(
95576 Views

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