NEET 2019 Biology Questions

Match the placental types (Column I) with their examples (Column II). Choose the correct answer from the following options: Column I (A) Basal (B) Axile (C) Parietal (D) Free central Column II (i) Mustard (ii) China rose (iii) Dianthus (iv) Sunflower []

Bicarpellary ovary with obliquely placed septum is seen in: []

Match the placental types (Column-I) with examples (Column-II): A. Basal B. Axile C. Parietal D. Free central (i) Mustard (ii) China rose (iii) Dianthus (iv) Sunflower []

Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is: []

Cells in G₀ phase:[]

After meiosis I, the resultant daughter cells have: []

The correct sequence of phases of cell cycle is:[]

Crossing over takes place between which chromatids and in which stage of the cell cycle? []

Match the following genes of the Lac operon with their respective products: () (A) i gene – (i) β-galactosidase (B) z gene – (ii) Permease (C) a gene – (iii) Repressor (D) y gene – (iv) Transacetylase

Expressed Sequence Tags (ESTs) refer to: ()

Purines found both in DNA and RNA are: (

Which feature of genetic code allows bacteria to produce human insulin via rDNA technology? ()

Under which condition will there be no change in reading frame of the given mRNA? () 5' AACAGCGGUGCUAUU 3'

Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains ()

Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid. ()

Which of the following immune response is responsible for the rejection of kidney grafts? ()

The drug called ‘Heroin’ is synthesized by ()

Which of the following sexually transmitted diseases is not completely curable ? ()

Which of the following is a commercial blood cholesterol-lowering agent? ()

Thiobacillus is a group of bacteria helpful in carrying out: ()

Which of the following can be used as a biocontrol agent in the treatment of plant disease? ()

Select the correct group of biocontrol agents. ()

Match the following organisms with the products they produce. ()

In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as: ()

Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is: ()

Pinus seed cannot germinate and establish without fungal association. This is because: ()

Which one of the following statements regarding post-fertilisation development in flowering plants is incorrect? ()

Variations caused by mutation, as proposed by Hugo de Vries, are ()

Among the following sets of examples for divergent evolution, select the incorrect option. ()

Match the hominids with their correct brain size. ()

In a species, the weight of a newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 or 4.5 to 5 kg die. Which type of selection process is taking place? ()