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For a dihybrid cross, how do you find out what proportion of offspring are expected to have a certain genotype?

The first step in tackling this is drawing a genetic diagram (which I would draw on the whiteboard). Say we are looking at a cross between two parents with genotype AaBb, so the cross would look like AaBb x ...
DM
Answered by Dan M. Biology tutor
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What is Glycolysis?

Glycolysis is the first stage of aerobic and anaerobic respiration. Glycolysis occurs in the cytoplasm of a cell as glucose can't pass the mitochondrial membranes and the enzymes needed for its breakdown are...
AJ
Answered by Adam J. Biology tutor
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Describe the pathway of oxygen getting from the air into the blood in the human body

diaphragm flattens and the chest wall moves up and out to decrease the pressure in the thorax. Inspiration occurs bringing air from the atmosphere into the mouth/nose and down the trachea, into the bronchi, ...
IC
Answered by Isabel C. Biology tutor
13278 Views

Describe the processes that take place during each stage of mitosis.

During prophase chromatin condenses and supercoils, and so the chromosomes become visible. The nuclear envelope breaks down and the centrioles migrate to opposite poles of the cell and start to produce the s...
NC
Answered by Niamh C. Biology tutor
3813 Views

How are membranes classified according to their permeability?

An impermeable membrane is one through which no substance can pass. Semipermeable membranes are those which only let solvents, such as water, pass through them. Permeable membranes are those which let solven...
AM
Answered by Adam M. Biology tutor
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