Yaha sab kuch bikta hai
bachh ke rehna

True story !! Must read !!

16 year old boys asks his Mom:
"Mom, what are you going to get
me for my 18th birthday ??
.
The Mother answers, "son
that's still a long way"
.
.
The boy turns 17 & one day he
faints.
His Mom takes him to the hospital
& the doctor said
"Madam your child has a bad
heart". Being the child On
the stretcher the child Says,
"did he tell you I'm going to die?
.
Mom Starts crying"
The boy finally recovers on
his 18th Birthday, he comes
home& on his bed was a
letter his mom had left him.
The letter said "Son if you are
reading this its because
everything went well.
Remember the day you asked me
what was i giving
you on your 18th birthday &
didn't know what to Answer
you??
"I gave you my heart" take
care of it and happy Birth day
Son" ?
The mother was dead because she had
to give up her heart to her son
Nothing is bigger than
MOM's Heart...!

‎CSIR-JRF/DBT-JRF/GATE-LIFE SCIENCES ASPIRANTS

Biological nitrogen fixation occurs when atmospheric nitrogen is converted into
(A) ammonia
(B) nitrate
(C) nitrite
(D) nitrogen dioxide

‎CSIR-JRF/DBT-JRF/GATE-LIFE SCIENCES ASPIRANTS

Blocking of ‘A’ site on the ribosome and thereby inhibiting protein synthesis is the mechanism of action of
(A) Streptomycin
(B) Tetracycline
(C) Chloramphenicol
(D) Erythromycin

CSIR NET JRF Life Sciences Aspirants

First appeared on earth was -

1. DNA
2. RNA
3. Histone 
4. Non histone

CSIR-JRF/DBT-JRF/GATE-LIFE SCIENCES ASPIRANTS

Which of the following repair mechanisms is absent in a cell arrested in cell cycle?
(A) Transcriptional coupled repair mechanism
(B) Excision repair mechanism
(C) DNA synthesis annealing repair mechanism
(D) Recombination repair mechanism

CSIR-JRF/DBT-JRF/GATE-LIFE SCIENCES ASPIRANTS

Which of the following hormones initiates biological actions by crossing the plasma membrane and then binding to a receptor?
(A) Insulin
(B) Glucagon
(C) Estradiol
(D) Norepinephrine

‎CSIR-JRF/DBT-JRF/GATE-LIFE SCIENCES ASPIRANTS

In a first order reaction A→B. The plot ______is a straight line
(A) [A] versus time (t)
(B) 1/ [A] versus time (t)
(C) ln [A] versus time (t)
(D) 1/ ln [A] versus time (t)