cloning (12-2)

Question 1

define cloning

Answer 1

when a cell replicates itself asexually without any genetic alteration or recombination.

Question 2

3 ways to make animal clones **update when questions answerd

Answer 2

1. artificial twinning
2. natural cloning
3. SCNT (somatic cell nuclear transfer)

Question 3

artificial embryo twinning

Answer 3

very early embryo is removed from adult and put into petri dish, the embryo is seperated into individual cells which divide and grow on their own, then implanted into surrogate mother.

form of sexual reproduction

Question 4

natural cloning

Answer 4

identical twins. when the cells in a developing zygote become seperated after the two-cell stage. sexual reproduction?

Question 5

cloning

Answer 5

making on or more replicas of an individual or a cell

Question 6

SCNT

Answer 6

somatic cell removed from adult that is being cloned. dna taken from somatic cell and placed into another individuals unfertilized, enucleated egg cell. this egg cell is planted into another surrogate mother.
total, 3 individuals needed for the process

form of asecual reproduction

eg)dolly the sheep and mimi the mouse

Question 7

mouse cloned by…and in the year…

Answer 7

uni of hawaii researchers, 1998

Question 8

cumulus cells

Answer 8

cells found in a layer of cells that surround and nourish an egg cell in females

cucumba, nourishing

Question 9

sertoli cells

Answer 9

cells found in the seminiferous tubules on the male reproductive system. they faciliate the creation of new sperm

Question 10

potential benefit of cloning for humans and potential risk

Answer 10

overcoming inferillity with scnt. could have children with their genes.

reduction in genetic diversity, as diversity is essential for the survival of species