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Biology
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Describe the role of a ribosome in the production of a polypeptide.

The ribosome binds to the mRNA and reads the codon codeThe ribosome brings the correct tRNA molecules to each mRNA codon, using complementary base pairing between the mRNA codons and the tRNA anticodonsEa...

Answered by Elizabeth H. Biology tutor
2169 Views

Compare the similarities and differences between animal and plant cells? (6 marks)

Both animal and plant cells have cytoplasm, a nucleus, cell membrane, mitochondria and ribosomes. In both animals and plants most cells are specialised and adapted for their function. Both cells can be vi...

Answered by Maria T. Biology tutor
7339 Views

Can a man with haemophilia pass it onto a) his son or b) his grandson?

Haemophilia is a sex-linked recessive condition that causes serious bleeding problems. In the human genome there are 22 autosomal chromosome pairs and 1 sex chromosome pair. Males are always XY and female...

Answered by Heather C. Biology tutor
5662 Views

Tom is an expactant father who is worried that he will pass on his Haemophilia A, an X linked recessive disease, to his offspring. The mother is homozygous dominant. Explain why his 1st generation offspring will not be affected by the condition.

A recessive inheritance pattern means that 2 copies of the mutant allele need to be inherited for the individual to be affected. The disease is X linked, meaning the allele is only found on the X chromoso...

Answered by Eilidh W. Biology tutor
1574 Views

"Describe the stages of protein synthesis"

TRANSCRIPTION: An RNA polymerase binds to non-coding DNA at the front of the gene. RNA polymerase produces a complementary RNA strand from the coding DNA of the gene. RNA strand leaves the nucleus via a n...

Answered by Abigail S. Biology tutor
2331 Views

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