Multiple Choice QuestionsPresence of which of the following hormone in the urine confirms pregnancy?
Progesterone
Oestrogen
Human chorionic gonadotropin
Prolactin
In plant tissue culture, the callus tissues can be regenerated into complete plantlets primarily by altering the concentration of
sugars
vitamins
amino acids
hormones
If you want to develop hybrid seeds within a bisexual flower, the following part needs to be removed from the same flower
stigma
ovary
anther
oviduct
Xenogamy is essentially a type of
cleistogamy
allogamy
autogamy
homogamy
B.
allogamy
Xenogamy is true cross-pollination, i.e., allogamy which involves the transfer of pollen grains from the anther of one plant to the stigma of another, genetically dissimilar plant.
Cleistogamy is a type of automatic self-pollination of certain plants that can propagate by using non-opening, self-pollinating flowers.
Autogamy or self-fertilization, is the fusion of two gametes that come from one individual. It is predominantly observed in the form of self-pollination, a reproductive mechanism employed by many flowering plants.
Homogamy is a state in which the flowers of a plant are all of one type either hermaphrodite or of the same sex.
Basic principle of developing transgenic plants and animals is to introduce the gene of interest into the nucleus of
somatic cell
vegetative cell
germ cell
body cell
Which pairs of the following diseases are caused by two genes located on human X-chromosomes?
Colour blindness and phenylketonuria
Colour blindness and haemophilia
Colour blindness and albinism
Colour blindness and hypertrichosis
Which one of. the following animals possesses giant chromosome?
Drosophila
Mouse
Pigeon
Elephant
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