List of top Botany Questions asked in AP EAMCET

Study the following and choose the correct pair

In Lac Operon Z, Y, a and i indicates the following codes

Plants which perform photosynthesis by these parts:
a) Ribbon like roots
b) Fleshy cylindrical stem
c) Needle like stem
d) Flattened stem
 

Find the correct statements regarding the structure of xylem and phloem: 
I. Xylem parenchyma store starch or fat or Tannins 
II. Xylem parenchyma have highly thickened walls and obliterated central lumens 
III. Companion cells are controlled by nucleus of sieve tubes 
IV. Phloem parenchyma is absent in most of the monocots

From the diagram answer the following:

Which of the following statements are correct?
I. In cyathium flowers are pollinated by Blastophaga
II. Bilipped corolla is seen in Ocimum
III. Basal placentation is found in Dianthus
IV. Whorled phyllotaxy is found in Alstonia

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


 

Choose the correct statements related to plant reproduction
I. In Cladophora, male and female gametes are morphologically similar
II. Male and female gametes of Pteris are heterogametes
III. Fungi are usually homothallic and unisexual
IV. Monoecious plants are bisexual

Study the table and find deficiency symptoms shown in plants

Choose correct combinations

In F2 progeny of dihybrid cross in pea plant the ratio of genotypes YyRR, yyRR, YyRR, Yyrr is

Choose the incorrect pair regarding plant tissue culture.

Removal of introns and joining of exons in defined order is called:
For efficient translation process, mRNA must have these:

Identify A, B, and C in the diagram of pBR322 (A, B, and C are restriction sites):


 

Process of technique of detecting HIV in suspected AIDS patients:
Formation of an embryo from an unfertilized female gamete

Match the following list: 


 

Assertion (A): In general, gene gun method is used to insert DNA into the competent host. 
Reason (R): In biolistic method, cells are bombarded with DNA coated with microparticles of gold. 
 

Assertion (A): PCR is used to detect HIV. 
Reason (R): It is based on the principle of antigen-antibody interaction. 
 

The number of Guanines and Adenines present in the DNA molecule of pitch at 170° with 130 Hydrogen bonds between base pairs:

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


 

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.
The ratio of the number of electrons to be excited from PS II during non-cyclic photophosphorylation and PS I during cyclic phosphorylation respectively to form 120 ATPs

Match the following: