First invertebrates insects fossil appeared in which of the following geological ages?

a) Mesozoic b) Jurassic

c) Paleozoic d) Devonian

e) Permian f) Pennsylvanian

Which of the following combinations give the best answer?

#Question id: 11607

#SCPH06 I Botany

How the active gibberellin GA1 is inactived by?

a)  By hydroxylation remove GA20 from the biosynthetic pathway by converting it to GA1

b) conversion to GA8 by a hydroxylation on carbon 2

c) By hydroxylation remove GA20 from the biosynthetic pathway by converting it to GA29

#Question id: 11608

#I Life Science/ Life Sciences Group – I-V

Which of the following  growth hormone  promote stem growth and were discovered in relation to the “foolish seedling disease” of rice?

#Question id: 11608

#SCPH06 I Botany

Which of the following  growth hormone  promote stem growth and were discovered in relation to the “foolish seedling disease” of rice?

#Question id: 11634

#SCPH01 Biochemistry

Given below, is the result of a complementation test for six independent mutants (A to H) '+' represents complementation; '-' represents noncomplementation Based on the above, which one of the following conclusions is correct?

#Question id: 11634

#SCPH12 I Genetics

Given below, is the result of a complementation test for six independent mutants (A to H) '+' represents complementation; '-' represents noncomplementation Based on the above, which one of the following conclusions is correct?

#Question id: 11635

#SCPH01 Biochemistry

Given below, is the result of a complementation test for eight independent mutants (1 to 8).