ANIMAL BREEDING AND TRANSGENIC ANIMAL QUIZ

DNA is microinfected into the fertilized egg

before the fusion of male and female nuclei

after the fusion of male and female nuclei

any time, it can be infected

at the time of fusion of male and female nuclei

TRUE ANSWER : ?
YOUR ANSWER : ?

When the cells are enucleated and centrifuged, nuclei

detach from cell and settle at the bottom

detach from cell and remain in the supernatant

None of these

nuclei remain attached to the cell

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the word used to describe what happens when the nucleus of a sperm joins with the nucleus of an egg cell?

Sex

Intercourse

Fertilisation

Reproduction

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YOUR ANSWER : ?

Which part of a cell carries the information that is passed from one generation to the next?

Cytoplasm

Chloroplast

Cell

Nucleus

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these established cell lines originate from a mouse embryo?

HeLa

3T3

BTK

BHK

TRUE ANSWER : ?
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Which of the following best describes artificial insemination?

Fertilization of an egg in a test tube

Taking the sperm and placing it directly

Selectively breeding healthy animals

Transplanting an embryo into the uterus

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The success of embryo transplantation depends upon the ability to obtain an increased number of embryos from animals of superior genetic merit, which can be achieved by the use of

endogenous gonadatrophic hormones

exogenous gonadatrophic hormones

FSH (Follicle Stimulating Hormone)

both (a) and (b)

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YOUR ANSWER : ?

Some types of variation are due to changes in the genetic material. What is this type of change called?

Sterilisation

Radiation

Mutation

Fertilisation

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The nucleous of mature unfertilized ovum may be removed by

irradiation

neutralization and homogenization

surgery

both (a) and (b)

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Production of transgenic animals require transfections of

stem cells

eggs or embryos

red blood cells

all of these

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YOUR ANSWER : ?

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