- The strand of DNA acting as template for mRNA
transcription is
I.coding strand
II. non-coding strand
III. sense strand
IV. anti sense strand
Choose the correct one from the codes given below
(a) I and II (b) II and IV (c) I and III (d) II and III - Consider the statement given below and choose the
correct option from the given codes.
I.Menstrual cycle is present in all mammals.
II. Menstrual cycle is present in all primates.
III. Oestrous cycle occurs in all mammals.
IV. Most mammals are ovoviviparous.
(a) I, II and IV (b) II and III
(c) I, II, III and IV (d) Only II - A DNA molecule has radioactive thymidine. It is
allowed to replicate in a medium containing simple
thymidine (without radioactivity). In how many
strands radioactive thymidine will be present after
three replications?
(a) 4 (b) 8 (c) 1 (d) 2 - A human male produces sperms with the genotype
AB Ab aB, , and ab pertaining to the diallelic characters
in equal proportions. What is the corresponding
genotype of this person?
(a) AABB (b) AaBB (c) AaBb (d) AABb - The ovule in which the funicle, chalaza and micropyle
lie in one vertical plane is called
(a) amphitropous (b) anatropous
(c) campylotropous (d) orthotropous
6. If 50 J energy is trapped by wheat plant. Then, how
much energy will be available to eagle as food in the
following food chain?
wheat plant → mice → snake → eagle
(a) 0.05 J (b) 0.005 J (c) 6.25 J (d) 0.5 J
7. The morphological self incompatibility occurs in
flowers having heterostyly. It promotes
(a) Self-pollination (b) Cross-pollination
(c) Both (a) and (b) (d) None of these
8. Assisted reproductive technology IVF, involves
transfer of
(a) ovum into the Fallopian tube
(b) zygote into the Fallopian tube
(c) zygote into the uterus
(d)embryo with 16 blastomeres into the Fallopian tube
9. Five kingdom system of classification suggested by RH
Whittaker is not based on
(a) the presence or the absence of a well defined nucleus
(b) mode of nutrition
(c) mode of reproduction
(d) complexity of body organisation
10.Consider the following statements with reference to a
normal human being.
I.Human saliva is slightly alkaline.
II. An adult human may secrete 1-1.5 L of saliva
per day.
III. Saliva is secreted by six pairs of salivary glands in
human beings.
IV. The salivary enzyme (ptyalin) breaks down cooked
starch into maltose.
Which of the statements given above are correct?
(a) I, II and III (b) III and IV (c) I, III and IV(d) I, II, III and IV
axel boer
(Axel Boer)
#1