List of top Botany Questions

Karyotype of Klinefelter’s syndrome is:

Chemically, oestrogens (oestradiol) are:

Assertion (A): Pancreas is a merocrine gland.
Reason (R): The apical parts of the pancreatic cells are pinched off along with the secretory product.

Assertion (A): Beggiatoa is not a chemoautotrophic bacterium. Reason (R): Chemoautotrophic bacteria derive carbon from CO\(_2\) and energy from oxidation of inorganic compounds.

Identify the correct combinations:

These hormones are commonly called catecholamines:

Match the following:

List-1: List-2:

A Physical barrier I Lysozyme
B Physiological barriers II Interferons
C Cellular barriers III Monocytes
D Cytokine barriers IV Colostrum
V Mucus membrane

In Morgan’s experiments on linkage in Drosophila, the percentage of white-eyed, miniature-winged recombinants in the F\(_2\) generation is:

Statement I: Jean Baptiste de Lamarck stated that acquired characters are inherited to the next generations.
Statement II: August Weismann strongly supported the view of inheritance of acquired characters.

Male flowers, female flowers and sterile gall flowers are present in:

Find out the correct statements among the following: A. DNA is (-Ve) charged, Histone proteins are (+Ve) charged.
B. DNA is (+Ve) charged, Histone proteins are (-Ve) charged.
C. Euchromatin is transcriptionally active.
D. Euchromatin and heterochromatin both are transcriptionally inactive.

Tetracycline resistance gene of pBR322 consists of this restriction site:

The following characters are found common to both mitochondria and chloroplast:

Cell organelles included in the endomembrane system are:

Per one Calvin cycle, the number of CO\(_2\) molecules fixed, ATP utilized, and the number of Glucose, NADPH molecules produced respectively are:

Tetracycline resistance gene of pBR322 consists of this restriction site:

If one species diverges to become two or more species, it is called:

In one helix of DNA, minimum and maximum number of hydrogen bonds present between nitrogen bases:

Study the following and pick up the correct combinations:

Identify the incorrect pair:

Match the following:

Match the following:

Pick up the incorrect pair:

The enzyme present in the gastric juice of infants is:

Assertion (A): Direct pollination is found in gymnosperms.
Reason (R): Ovules of gymnosperms are naked.