Biology Questions

QUESTION SEVEN: GENETICS
Cloning involves making an exact copy of an organism. Selective
breeding involves the breeding together of organisms that possesses
highly desirable characteristics.
Compare and contrast selective breeding and cloning.
Your answer should include
How the offspring compare to their parents
Their relative advantages and disadvantages
QUESTION EIGHT: GENETICS
There are many genes used by pedigree cat breeders to get a range of
colours, fur length and body shapes. Several genes can control coat
colour in cats.
One of these produces the Agouti pattern, where each hair has a black tip
but bands of light and dark towards the hair root. This causes a cat to
have a striped appearance. This pattern is dominant, and denoted by the
letter A. The recessive allele for this trait gives plain black hairs.
(a)
A breeder wishes to have a pure breeding group with the Agouti
coat colour. He has a group of the Oriental breed pictured above,
some of which are black and some of which are Agouti.
Discuss how he would go about developing a pure breeding
Agouti group. Include punnet square(s) in your answer.
In the future it may be possible for breeders to simply sell copies of a
cloned Agouti cat rather than rely on selective breeding. Cloning involves
taking a cell from the parent and making an identical copy of the parent.
The genetic characteristics of the animals obtained by these two breeding
techniques will be different.
(b) Discuss the reasons for the differences in the genetic characteristics
of the cats produced by selective breeding and cloning. In your
answer you should:
Consider the type of cell division
involved in each breeding technique.
Variation (or lack of it) in the offspring