List of top Questions asked in AP EAPCET

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.

Punishable offence under Wildlife Act of 1972 is:

Embryos of protostomes are called:

Assertion (A): Adult gastropods are asymmetrical though they are included in phylum Mollusca.
Reason (R): Symmetry of organism is determined in early developmental stages but not in adults.

Dense irregular connective tissue occurs in:

Choose among the following the characters of Ophiuroidea of phylum Echinodermata:

Choose the incorrect combination among the following:

Class	Character	Example
1) Xiphosura	Poisonous Claws	Limulus
2) Arachnida	Coxal Glands	Scutigera
3) Crustacea	Biramous appendage	Sarcoptes
4) Diplopoda	Gnathochilarium	Spirostreptus

Identify the larval stages in the development of liver fluke:

The closest invertebrate relatives of chordates belong to the phylum:

Assertion (A): It is necessary to know the life history of an ascidian to consider it a chordate.
Reason (R): Ascidians exhibit retrogressive metamorphosis in which larval stages are in a degenerated condition.

Identify the incorrect pair regarding vertebrae:
A. Birds – Amphicoelous
B. Fishes – Procoelous
C. Urodela – Procoelous
D. Caecilians – Amphicoelous

Identify the protozoan with anematic flagellum:

Protozoan in which cilia are confined only to juvenile stages is:

Wriggling movements of sporozoites are caused by:

The drugs that cause sleeplessness:

Identify the correct statement in relation to Wuchereria: