In racemose inflorescence, $\_\_\_\_$ .
The main axis terminates in a flower
Flowers are solitary
The growth is limited
Flowers are borne in an acropetal succession
Arrange the following in the correct developmental sequence related to microsporogenesis :
A. Microspore tetrads
B. Sporogenous tissue
C. Pollen grains
D. Pollen mother cells
Choose the correct answer from the options given below :
$\mathrm{D}, \mathrm{A}, \mathrm{C}, \mathrm{B}$
$\mathrm{B}, \mathrm{D}, \mathrm{A}, \mathrm{C}$
$\mathrm{B}, \mathrm{D}, \mathrm{C}, \mathrm{A}$
$\mathrm{A}, \mathrm{D}, \mathrm{C}, \mathrm{B}$
Identify the correct statements about biomolecules.
A. Lipids are generally water soluble.
B. Proteins are polypeptides.
C. Polysaccharides are long chains of sugars.
D. Adenine and guanine are substituted pyrimidines.
E. Almost all enzymes are proteins.
Choose the correct answer from the options given below :
B, D and E only
B, C and E only
A, B and C only
C, D and E only
Which of the following statements are true with reference to the sex-determination in honeybees?
A. An offspring formed from the union of a sperm and an egg, develops as a female (queen or worker).
B. An unfertilized egg develops as a male by parthenogenesis.
C. A male has half the number of chromosomes than that of a female.
D. Males produce sperms by meiosis.
E. Honeybees have a haplodiploid sex-determination system.
Choose the correct answer from the options given below :
A, B, C and E only
B, C, D and E only
A, B, C and D only
A, B, D and E only
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