List of top Botany Questions asked in Andhra Pradesh Engineering Agriculture and Medical Common Entrance Test

Number of chromosomes in maize root cells at G1 phase, after S and M phases respectively

Match the following:

Assertion (A): By mutations genetic variations are created resulting in a new trait not found in the parental type.
Reason (R): Plants having desirable characters will be selected after inducing mutations with chemicals or radiation.

Identify the correct pair of variety crop developed for resistance to the disease:

Bacteria used to produce human insulin chains is:

Identify the wrong statement from the following:

The number of recombinants in the 1280 progeny obtained through a dihybrid cross of Mendel in the F₂ generation.

Arrange the following in correct order in polymerase chain reaction cycle:
I Deannealing
II Denaturation
III Extension
IV Annealing

Assertion (A): Primers are used in polymerase chain reaction technique. Reason (R): Primers is used for the addition of new DNA nucleotides.

Identify A and B in the diagram given below:

Diagram represents central dogma of molecular biology. Choose the correct labelling of "X" and "Y":

Choose the correct pair from the following:

The genetic nature of TMV (Tobacco Mosaic Virus) as RNA was confirmed by:

Assertion (A): Nitrosomonas is a Chemoautotrophic bacteria.
Reason (R): Chemoautotrophs derive energy from sunlight and carbon from CO\(_2\).

In plants, growth rate is expressed in Arithmetic and Geometric growth equations. Which equation is correct?

Ratio of ATP:NADH:FADH2 produced in Krebs' cycle per one acetyl Co-A molecule by substrate level phosphorylation is:

Identify A, B, and C in the given Hatch and Slack pathway diagram:

In the Calvin cycle, the ratio of trioses formed, net gain, and used to regenerate RUBP is:

Identify enzyme "X" in the reaction \( {CO}_2 + {H}_2{O} \xrightarrow{{X}} {H}_2{CO}_3 \):

The element which is important in determining solute concentration and oxygen evolution:

Essential elements like Nitrogen, Phosphorus, Potassium are supplied to plants growing in soil through:

Correct equation of water potential of a cell:

Study the comparison of different transport mechanisms to pick out the correct pair in the following format:

Assertion [A]: The species that invade a bare area are pioneer species
Reason [R]: In primary succession, lichens or Phytoplanktons invade rocks and water respectively

Match the following: