WorksheetsMONTHLY TEST BIOLOGY (Class:12th)
Total questions: 10
Worksheet time: 20mins
Transplantation of tissue/organs to save certain patients often fails due to rejection of such tissue/organs by the patients. Which types of immune response is responsible or such rejection?
Auto-immune response
physiological immune response
Cell-mediated immune response
Humoral immune response
statin is used as blood cholesterol lowering agent is obtained from:
Trichodema polysporum
Monascus purpureus
streptomyces pneumoniae
staphylococci cerevisiae
Structural protein 'a' in the lac-operon model will express as:
β-galactosidase
Permease
transacetylase
repressor molecule
RNA polymerase III transcribes
hnRNA
tRNA
5s rRNA
BOTH option (2) & (3)
Some plants produce uniseual flowers.Give suitable terms for the plants which produce:- unisexual flower in same plant.
Monoecious plants
Dioecious plant
Heteroecious plants
both Option (2) &(3)
"LAB is good for health". If you are agreed, which of the following point(s) would be supportive to the statement
(i)LAB secretes lactic acid that coagulates milk and partially digests milk proteins
(ii)Increase Vita-B12
(iii)Check disease causing microbes in stomach
only (i)
both (ii) & (iii)
both(i) & (ii)
All of the above
which one is the component of oral pills:-
Progesterone
Oxytocin
Relaxin
None of these
Addition of an extra chromosome at 21 number due to nondisjunction will cause Down's syndrome, it is the
example of:
Eupoloidy
polyploidy
Aneuploidy
Sarco Ploidy
Myotonic Dystrophy is an example of
Autosomal recessive disorder
autosomal dominant disorder
x-linked recessive disorder
x-linked dominant disorder
In a DNA strand the nucleotides are linked together
glycosidic bonds
phosphodiester bonds
peptide bonds
hydrogen bonds
