Top answers

What does sex linkage mean?

Sex linkage refers to when certain alleles affect one gender more than the other. Men tend to be affected by some genetic disorders more than women. This is because some alleles for genetic disorders are car...
AS
Answered by Amy S. • Biology tutor
5930 Views

What affects enzyme activity?

Enzyme activity is dependent on five different factors. These include temperature, pH, concentration of substrate, concentration of inhibitor and concentration of the enzyme itself. Firstly, most enzymes are...
KF
Answered by Kristina F. • Biology tutor
7534 Views

What is an enzyme?

An enzyme is a biological catalyst that enables reactions to occur by decreasing the activation energy they need. Not only would certain reactions not take place without the enzyme, they are also important i...
KF
Answered by Kristina F. • Biology tutor
3199 Views

How many chromosomes dies each cell of the human body have ?

All human body cells have 23 pairs of chromosomes (46 total), 22 pair of autosomes and 1 pair of sex chromosomes. However, sperm and egg cells only have one set of chromosomes (23 total).
HK
Answered by Helen K. • Biology tutor
6712 Views

What are three differences between DNA and RNA? ( 3 marks)

RNA is single stranded whereas DNA is double stranded - RNA has the bases A,G,C and U whereas DNA has the bases A,G,C and T - An RNA nucleotide has ribose as its sugar component whereas a DNA nucleotide has ...
PN
Answered by Prahalad N. • Biology tutor
3281 Views