The genotypes of a husband and wife are IAIB and IAi. Among the blood types of their children, how many different genotypes and phenotypes are possible? Option 1 : 3 genotypes; 4 phenotypeOption 2 : 4 genotypes; 3 phenotypesOption 3 : 4 genotype; 4 phenotypesOption 4 : 3 genotypes; 3 phenotypes

The pivot joint between atlas and axis is a type of Option 1 : Fibrous jointOption 2 : Saddle jointOption 3 : Synovial jointOption 4 : Cartilaginous joint

DNA fragments are Option 1 : NeutralOption 2 : Negatively chargedOption 3 : Either positively or negatively charged depending on their sizeOption 4 : Positively charged

Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP? Option 1 : ChloroplastOption 2 : RibosomeOption 3 : MitochondrionOption 4 : Lysosome

If there are 999 bases in an RNA that codes for a protein with 333 amino acids and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered? Option 1 : 11Option 2 : 33Option 3 : 333Option 4 : 1

Fruit and leaf drop at early stages can be prevented by the application of Option 1 : CytokininsOption 2 : Gibberellic acidOption 3 : AuxinsOption 4 : Ethylene

Out of ‘X’ pairs of ribs in humans only ‘Y’ pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation: Option 1 : X = 24, Y = 12             True ribs are dorsally attached to vertebral column but are free on ventral side. Option 2 : X ...

GnRH, a hypothalamic hormone, needed in reproduction, acts on Option 1 : Posterior pituitary gland and stimulates secretion of oxytocin and FSH.Option 2 : Posterior pituitary gland and stimulates secretion of LH and relaxin.Option 3 : Anterior pituitary gland and stimulates secretion of LH and ...

Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement. Option 1 : Thalassemia is due to less synthesis of globin molecules.Option 2 : Both are due to a quantitative defect in globin chain synthesis.Option 3 : Sickle cell ...

The presence of plants arranged into well-defined vertical layers depending on their height can be seen best in Option 1 : Tropical savannahOption 2 : Tropical rain forestOption 3 : Temperate forestOption 4 : Grassland