List of practice Questions

Tubular and multinucleated alga is ______.
On reaching the ovary, if pollen tube enters the ovule through integuments, then it is called ______.
If a colour blind man marries a normal visioned woman, what is the percentage of offsprings showing colour blindness phenotypically?
Students of class XII were given a list of following characters such as clawed toes, curved beak, feathers, pneumatic bones, wings and fur. In this list, how many are volant adaptations?
Among the following respiratory substrates, which one is the main source of energy?
Which one of the following can form a nucleotide of DNA?
When stimulus is applied to a membrane of neuron, it causes rapid influx of ________________.
Neurogenic heart receives stimulus for contraction from ______________ fibres.
During tissue culture, the growth hormones are provided to callus to induce ______________.
Two consecutive nucleotides of a nucleic acid are linked with ______________ bond.
A sudden rise in the level of LH stimulates ______________.
Larger DNA molecule CANNOT be inserted in host bacterial cell by using ______________.
In the F$_2$ generation of a dihybrid cross of homozygous parents, the number of genotypes and phenotypes will be respectively ______________.
White coating material called enamel covers ______________ of tooth.
Which of the following is NOT an ectodermal derivative?
Semi dwarf rice varieties were developed from ______________ in Philippines.
The large number of genetically identical offsprings produced by micropropagation are called ______________.
Following are classified as plasma proteins EXCEPT ______________.
The technique developed to identify a person with the help of DNA restriction analysis is ______________.
The suspensor of the embryo in angiosperms develops from ______________ cell.
Which group of plants do NOT contain vascular tissue?
The megasporangium in angiosperms is usually ______________.
______________ is obtained from fermented grains of mostly barley.
The glans penis is a derivative of ______________.
Genome of an organism CANNOT be altered by ______________.