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Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads to early seed production?
Which one of the following is a xerophytic plant in which the stem is modified into a flat green and succulent structure:
What is the pattern of inheritance for polygenic traits?
The floral formula ⊕ ⚥ K(5) C(5) A5 G(2) is that of:
A heterozygous pea plant with violet flowers was crossed with a homozygous pea plant with white flowers. Violet is dominant over white. Which one of the following represents the expected combinations among 40 progenies formed?
A test cross is carried out to:
Which one is wrongly matched?
Which of the following cannot be detected in a developing foetus by amniocentesis?
Which of the following statements is incorrect regarding cellular respiration?
Pollen grains can be stored for several years in liquid nitrogen having a temperature of:
The marked part as 'x' in the given figure (L.S. of an Apple) is:
Reason for trisomy in Down's syndrome is:
Cotyledon of maize grain is called?
Diadelphous stamens are found in:
In glycolysis, the conversion of 1, 3-bisphosphoglyceric acid to 3-phosphoglyceric acid is:
Free-central placentation is found in?
Which one of the following conditions correctly describes the manner of determining the sex in the given example?
Point mutation involves:
Given below are two statements: Statement I: Failure of segregation of chromatids during cell cycle, resulting in the gain or loss of whole set of chromosome in an organism, is known as aneuploidy. Statement II: Failure of cytokinesis after anaphase stage of cell division resulting in the gain or loss of chromosome is called polyploidy. In the light of the above statements, choose the correct answer from the options given below:
Centromere is required for: