Explanation:
Plasmodium is a protozoan which is a causative organism of malaria. It has no locomotory organ and
it belongs to the class sporozoa. Sporozoans are also called as apicomplexa since they share an
apical complex of microtubules at one end. They have an infectious spore
–like stage in their life
cycle.
Question: 10
Cuticles of annelids are made of
A. Chitin
B. Collagen fibres
C. Calcium carbonate
D. Pectins
E. None of these
Correct Answer: B. Collagen fibres
Explanation:
Cuticles of annelids are made of collagen fibres. Collagen is secreted by the epidermis. Chitin is
present in the exoskeleton of arthropods. Pectin is a structural polysaccharide present in primary wall
of plants.
Question: 11
The method used to predict genotypic and phenotypic ratios of progeny from a genetic cross
is called
A. Punnett square
B. Chi square
C. Friedman test
D. Paired t test
E. None of the above
Correct Answer: A. Punnett square
Explanation:
Punnett square, multiplication rule and addition rule are the methods used for determining the
outcome of a genetic cross. The rest of the given methods are statistical methods.
Question: 12
The gametophyte of fern is called
A. Prothallus
B. Thallus
C. Hyphae
D. Conidia
E. Haustoria
Correct Answer: A. Prothallus