Cloning

Question 1

When was the first animal cloned

Answer 1

Dolly, the sheep in 1997

Question 2

Why are their low birth rates and/or survival rates in cloning

Answer 2

due to many offspring suffering frm deformities

Question 3

What is animal cloning?

Answer 3

a form of duplicating an organism with the use of human intervetnion

Question 4

w

what are the types of animal cloning

Answer 4

Somatic cell nuclear transfer(SCNT)

embyro splitting

Question 5

Somatic cell nuclear transfer(SCNT)

Answer 5

a type of cloning where the nucleus of the somatic cell is placed into an unucleated unfertiliseg egg cell.

Question 6

describe the porcess of Somatic cell nuclear transfer(SCNT)

Answer 6

1. enucleation-remove hte nucleus from te egg cell to produce an enucleated egg cell
2. extraction-remove nucleus from somatic cell
3. insertion-fuse the nucleus and the enucleated egg cell with the use of an electric pulse
4. development-embyro develops and is inserted into the surogorate mother to produce a clone

Question 7

Is it legal to clone humans, what is somatic cell nuclear transfer used for sepicall what orgnaism,s and what complications are faced when cloning by researhceers

Answer 7

1. illegal to clone humans
2. SCNT is carried out in sheep, dogs and monkeys
3. complicated faced are animal suffering and premature aging

Question 8

What is embyro splitting

Answer 8

a type of cloning where fertilised egg beingspilt inot 2 by humans during the ealry stages of embyronic development and is transfered into the uterus of the mother.

Question 9

In embyro splitting, what is IVF used for, how can it be used in livestock breeding programs andwhy

Answer 9

IVF is used to selecetviely choose eggs and sperm from the desirable traits of the parents

Can be used in lifestock breeding progams to increase the number of offpspring,resulting in decreased genetic variation

Question 10

What is cloning in plants/what happens

Answer 10

you take part of a healthy plant and plant that fragment in soil, resulting in the development of roots and shoots and finally a new plant that is seperated into its own pot

Question 11

what are the 2 types of cloning in plants?

Answer 11

Plant cutting
Plant grafting-joining 2 plants into one

Question 12

What is cloning plantsused to produce, what can it be used to consereve and and what does it lack what does it mean for te plants to be lacking

Answer 12

1.used in horticuluture industry to rapidly produce plants

2. can be used to conserve rare or endangered plant specifies
3. lacks genetic diveristy-suspecitable to disease, pests and environmental changes

Question 13

differnec between germentation and vergative propgation

Answer 13

Plant propagation is the process of creating new plants from different sources and the distribution while seed germination is the process by which plants grow.

Question 14

what process causes genetic variation

Answer 14

meiosisi and the 2 process within meiosis that cause genetic variation are crossing over and independent assortnemt

Question 15

What organism can do through both asexual and sexual reproduction

Answer 15

fungi which can go through parthengoenisis

Question 16

In clonining why do heart problems, artheriitis and other conditiions frequently occur

Answer 16

when the clones are produced, their telomeres shrink overtime

Question 17

what kind of DNA does an egg cell contain and what happens to this DNA

Answer 17

the egg cell contains mitochondrial DNA which ONLY the female passes onto her offpsring

Question 18

Benefits of cloning

Answer 18

1. Harvesting organs
2. Farms being able to clone animals that produce of dairy products
3. Farmers cloning good crops

Question 19

Disadvantages of cloning

Answer 19

The animals have no genetic variation, meaning that they have a small gene pool, and as result if a disease hits them or a natural disaster occurs they do not have the immune system or abilty to fight it, this can lead to existintion

Animals sufferand die quickly and premature aging

Question 20

differneces between somatic cell nuclear trasfer and embyro splitting

Answer 20

somatic cell nuclear transfer in there is only one clone produced and that indiviudal clone is idenitcal to the parent, whereas in mebyro splitting mutiple offspring are produced but these offpsring are not identical to the parent rather indentical to eachother

Question 21

Why do we use somatic cells instead of sex cells(gametes) in cloning

Answer 21

we use somatic cells and not sex cells in cloning because sex cells(gametes) have 23 chromosmes which does not allow cloning to occur, whereas somaitc cells have 46 chromsomes. and iwe always need our cells to hvae 46 chormsoemsto clone/rerpoduce becaues our chromsomes exist in mathcing pairs

Question 22

Difference between extraction and enucleation

Answer 22

In enucleated we keep the egg cell, wherweas in extraction we get rid of the somaitc cell

Question 23

Disadvantage of cloning humans

Answer 23

Cloning a certain indvidaiul for traits and looks is an ethical complication due to not variety in features or personality because people would breed children to fit society’s standards of attractive and perfect

2. If there was a celebtryeveryone lovedand that person was cloned mutiple times then everyone wouldnt view that person to have feelings or feel the need to treat them right so theyd mistreat them and abuse them which would have massive mental affects on the clones

Question 24

Process of embyro splitting

Answer 24

1. Sperm is removed from the father
2. Female is artifically inseminated with sperm
3. Zygote develops into emybro
4. Embyros spilt into smaller sereveral embyros
5. Embyros are placed inot the uteruus of the suroggrate mothers and a clone is produced
   6.

Question 25

# C Complications of embyro splitting

Answer 25

1. Ethical complication because religious people argue that embyros should not be forcefully spererated and if it was in god wills it would happen without force. 2. ==

Question 26

Reproductive techniques for plants

Answer 26

Plant cutting plant grafting

Question 27

Plant cuttinga

Answer 27

A fragment of the plant e. root or stem is cut then that frgamenet is planted under soil and grown and nurutred the smae way a normla lmat would be --with optoum light temperature and soil PH

Question 28

plant grafting

Answer 28

the joining together of plant parts by means of tissue regeneration

Question 29

process of plant grafting

Answer 29

1. get rid of the scion and attatch it to the rootstock

Question 30

advantages vs disavantages of plant cloning

Answer 30

Disdavantgae: expensive and labour intensive, no genetic varation , more suspectitbailt to disease due to lack of vairaiton and smaller gene pool Advantage: Faster than reproducting plants the tradiation way using seeds, it can prevent extinctsion of species and increase food porduction , also being able to produce produce throughut the year not in a select season

Question 31

Differinate between the root stock and the scion

Answer 31

the rootstokc is an underground part of the plant that is there to absorb nutrients and support the plant, whereas the cion detaches from one plant to attach to the rootstock for grafting, it grows and provides nutrients into the plant.

Question 32

Advantages vs disadvantgaes of plant gradting

Answer 32

advantgaes: plant varaiton perservation of rare nad engangered species faster growth and fruiting Disadvatnages: can cause reduaction in food quality/pnat quality limited number of plants can be produced requires skilled workers for this process to be succesful

Question 33

theraputic cloning

Answer 33

clone is produced in order to harvest the cells of the clone for treatement or research of the disease

Question 34

plant culuturing

Answer 34

also know am micropropgation is a method og plant clong where you take a cell fromthe plant ad=nd place it inota nutirent cutlure mediu eg. a break under optium levls ofsunlight, water nad temperatue

Question 35

Suggest an advantage of embryo splitting over traditional selective breeding techniques.

Answer 35

Embryo splitting is advantageous when compared with selective breeding because multiple genetically identical offspring can be produced instead of only a single offspring.1

Question 36

Describe the mechanisms in meiosis that help to increase genetic diversity.

Answer 36

In meiosis, individual chromosomes are independently assorted between the four gametes.1Also, genetic material is transferred between homologous chromosomes during recombination.2 Both of these processes help create novel genotypes which increase the genetic diversity of a population.3

Question 37

descirbe a scenairio where aseuxal reprduction should slow down

Answer 37

asuexl reprpduciton producing too muchfuni reuslting in lack of food and resources

Question 38

somatic cell nucelar trnafser process explain

Answer 38

1. enucleation so the nucleus is rmeoved from the egg cell to produce an enucleated egg cell 2.extraction- nucleus from the somatic cell is removed 3. insertion-the nucleus of the somitc cell isfused with the enucleated egg cell 4. The cell with the somatic cell made earlier is placed into the uterusu of the suggroate mother and devleopsinto a lcone