List of top Botany Questions asked in Andhra Pradesh Engi Agriculture & Pharmacy CET

The physiological and morphological phenomena that happen when bulliform cells absorb water and undergo water stress respectively

Primary CO$_2$ acceptor in C$_4$ plants

Yeast poison themselves to death, because

Water potential is equal to solute potential in the following

Haem group associated with the enzyme catalase is an example of

The compounds produced when RuBP reacts with O$_2$ are

With reference to stomatal movement, choose the correct statements:
[a.] Proton efflux increases pH of guard cells.
[b.] Efflux of K$^+$ and Cl$^-$ decreases water potential of guard cells.
[c.] In the absence of light, K$^+$ and Cl$^-$ efflux from guard cells.
[d.] Presence of ABA in guard cells causes efflux of K$^+$.

Identify the correct sequence of steps in the formation of root nodules in legumes:
[a.] Formation of infection thread
[b.] Curling of root hair
[c.] Stimulation of cell division in cortex and pericycle
[d.] Release of sugars and amino acids by legume roots
[e.] Release of bacteria into cortical cells

Assertion (A): Vernalization is seen in Biennials
Reason (R): Cold treatment stimulates photo-periodic flowering response in cabbage.

Match the following:

List I	List II	List III
I. Robert Costanza	C) Price tags	ii) Nature’s life support services
II. Sundarbans	A) Mangroves	iv) Flood protection
III. Lichens	D) Soil formation	i) Other supporting service
IV. Ecological function	B) Public transit	iii) Conserve natural services

The number of absorbed CO$_2$ and water molecules to produce 180 g of glucose in plants are:

Father of Bacteriology and link to infectious diseases

Amphitrichous bacteria contain flagella like this:

Name the Mendel’s factors and pair of contrasting traits

Heterozygous tall plants were crossed with dwarf plants. Then the percentage of dwarf plants produced in the next progeny is:

Lac Operon concept is introduced by these biochemists and geneticists:

The correct combinations among the following:

Scientist	Event / Contribution
I. Miescher	Named nuclein
II. Fisher	Discovered purines
III. Altman	Isolated nucleic acids
IV. Franklin	DNA X-ray diffraction

It is not involved in recombinant DNA production.

Name and arrange the following in the order of technique and steps for separation and isolation of DNA fragments:
[I.] DNA fragments moved towards anode under electric field
[II.] Exposure to UV radiation
[III.] DNA fragments stained with EtBr (Ethidium Bromide)
[IV.] Gel electrophoresis
[V.] Elution

In EcoRI, R and I denote:

Choose the correct statements:
[A.] Asexual reproduction preserves genetic information.
[B.] Hybridization leads to multiply desirable genes.
[C.] Restriction enzyme adds methyl group to DNA.
[D.] Genetic engineering changes the phenotype of the organism.

Cryopreservation is done at a temperature of:

Match the following:

List I (Organism/Enzyme)	List II (Product/Use)
I. Aspergillus niger	D. Citric acid
II. Clostridium butylicum	C. Butyric acid
III. Lipase	A. Detergent formulation
IV. Saccharomyces	B. Ethanol

Assertion (A): Super weeds are fast growing than crops and resistant to weedicides.
Reason (R): There is transfer of new genes into related wild species through natural out crossing.