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Axile placentation is observed in:
Which one of the following is the most likely root cause of why menstruation is not taking place in a regularly cycling human female?
The method of DNA replication in which two strands of DNA separate and synthesize new strands is called:
In a marriage between a male with blood group A and a female with blood group B, the progeny had either blood group AB or B. What could be the possible genotype of the parents?
Select the incorrect match regarding the symbols used in Pedigree analysis:
Which of the following growth regulators is an adenine derivative?
Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child?
In the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called:
In Hatch and Slack pathway, the primary CO2 acceptor is -
The fruit fly has 8 chromosomes (2n) in each cell. During the interphase of mitosis, if the number of chromosomes at G1 phase is 8, what would be the number of chromosomes after the S phase?
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The beginning of diplotene is recognised by the dissolution of the synaptonemal complex and formation of X shaped structures called chiasmata. Reason (R): In oocytes of some vertebrates, diplotene can last for months or years.
From an evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:
State which of the following statements are true: I. Abortions could happen spontaneously too. II. Infertility is the inability to produce viable offspring due to defects in the female partner only. III. Complete lactation could help in contraception. IV. Creating awareness can help create a reproductively healthy society.
Doubling of the number of chromosomes can be achieved by disrupting mitotic cell division soon after:
Diadelphous stamens are found in
Which of the following is a commercial blood cholesterol lowering agent?
Given below is a schematic break-up of the phases/stages of cell cycle. Which one of the following is the correct indication of the stage/phase in the cell cycle?
The phenomenon by which the undividing parenchyma cells start to divide mitotically during plant tissue culture is called as :
Which of the following statements about RuBisCO is true?
Which of the following statements is correct ?