Top answers

Biology
All levels

Some phenotypes, such as colour-blindness, are caused by sex-linked genes. Explain why colour-blindness is more common in men than in women

Sex-linked genes are located on the sex-chromosomes, X and Y. Females have two X-chromosomes, XX, and males have one X and one Y-chromosome, XY. The X-chromosome is much larger than the Y-chromosome and s...

ZN
Answered by Zoe N. Biology tutor
8898 Views

Describe protein synthesis

Firstly, DNA is transcripted into mRNA inside the nucleus, controlled by RNA polymerase. The DNA is unwound by RNA polymerase into two strands. There is complimentary base pairing between the template str...

SF
Answered by Sarah F. Biology tutor
2591 Views

What is the difference between mitosis and meiosis?

Both mitosis and meiosis are methods of cell division. Mitosis is cell division where the DNA of the parent molecule is duplicated then split into 2 identical daughter cells. Mitosis is split into 4 stage...

PC
Answered by Pavan C. Biology tutor
2160 Views

Compare and contrast the structures and starch and cellulose and explain how these relate to their functions in the cell

Both are biological polymers (macromolecules) formed from glucose molecules joined by 1-4 glycosidic bonds.Both are insoluble: good for starch as it does not affect the osmotic potential of the cells in w...

ER
Answered by Eleanor R. Biology tutor
20886 Views

Describe the events of synaptic transmission

An action potential travels towards the synaptic terminal down the axon in a wave depolarisation. The voltage gated calcium channels on the membrane of the presynaptic bulb open causing an influx of calci...

GH
Answered by Georgie H. Biology tutor
2768 Views

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences