SOOOOO MUCHHHH, thats why i believe HSC is based on luck, cause if the stuff i dont know gets tested then im gone! but if the stuff i do get, gets tested them i'll pass. :)
18)b
You work back from sue (towards the parents), and work out everyones genotype, by doing this you get the the conclusion that:
Sues genotype is either:
XX or XX' (this depends on what gene her mother gave to her (X' or X))
Since her child is a boy, her husband gives a y allele, therefore...
This is for Mx1 + Mx2, substitution questions:
When the substitution is give as:
y = sqrt (2x - 3)
Are we allowed to rearrange the substitution to:
y^2 = (2x - 3)
(and then ddx both sides) ?
Thanks.
IMMEDIATELY SKIP the questions you are unsure about/ are having difficulties completing. This will prevent time "wastage" on marks which you might not even get? In consequence, complete ALL the questions you can do/ have a thorough idea about how to complete (so you try and maximise the marks...