Which one of the following triplet codon is known as initiation codon?
UUU
UAA
AUG
UGA
C.
AUG
AUG and GUG are called initiation codons because they initiate the polypeptide chain. UAA (Ochre), UAG (Amber) and UGA (Opal) are termination codons. If these codons are present in mRNA, the protein synthesis stops abruptly, whether the protein synthesis is complete or not.
UUU codes for phenylalanine.
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
In plant tissue culture, the callus tissues can be regenerated into complete plantlets primarily by altering the concentration of
sugars
vitamins
amino acids
hormones
Presence of which of the following hormone in the urine confirms pregnancy?
Progesterone
Oestrogen
Human chorionic gonadotropin
Prolactin
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