Pick out the organism whose fertilization occurs internally

(a)

reptiles

(b)

sponges

(c)

pisces

(d)

amphibians

Which of the following is correct regarding HIV, hepatitis B, gonorrhoea and trichomoniasis?

(a)

Gonorrhoea is a STD whereas others are not.

(b)

Trichomoniasis is a viral disease whereas others are bacterial.

(c)

HIV is a pathogen whereas others are diseases.

(d)

Hepatitis B is eradicated completely whereas others are not.

_______is unique for DNA.

(a)

Adenine

(b)

Uracil

(c)

Guanine

(d)

Thymine

The golden age of reptiles was

(a)

Mesozoic era

(b)

Cenozoic era

(c)

Paleozoic era

(d)

Proterozoic era

Plants used for bio-diesel production________

(a)

Anabaena

(b)

Jatropha

(c)

Pongamia

(d)

b and c

Which of the following is an r-species

(a)

Human

(b)

Insects

(c)

Rhinoceros

(d)

Whale

Which of the following is a behavioural adaptation?

(a)

Thick fur

(b)

camouflage

(c)

Sharp canines

(d)

Migration

Which of the following post fertilization change is incorrectly matched?

(a)

Secondary nucellus - Endosperms

(b)

Antipodals - Degenerates

(c)

Nucellus - Testa and tegma

(d)

Funicle - Seed stalk

The point mutation sequence for transition, transition, transversion and transversion in DNA are ______.

(a)

A to T, T to A, C to G and G to C

(b)

A to G, C to T, C to G and T to A

(c)

C to G, A to G, T to A and G to A

(d)

G to C, A to T, T to A and C to G

Pick out the co-mutagen from the following:

(a)

Eosin

(b)

Mustard gas

(c)

Ascorbic acid

(d)

Nitrous acid

The prevention of large scale loss of biological interity ____.

(a)

Biopatent

(b)

Bioethics

(c)

Biosafety

(d)

Biofuel

Statement 1: Latitudes represent distance from the equator.
Statement 2: Height above the seal level from longitude.

(a)

Statement 1 is correct. Statement 2 is incorrect

(b)

Statement 1 is incorrect. Statement 2 is correct

(c)

Both the statements are correct.

(d)

Both the statements are incorrect

Assertion (A): In forest ecosystem, the pyramid of number is spindle shaped.
Reason (R): Tropical level (Tl) of the pyramid occupies large trees which are maxium in number.

(a)

Both A and R are wrong

(b)

A is right R is wrong

(c)

R explains A

(d)

A is right R is not the correct explanation for A

Invasive species _______________

(a)

alter the soil system

(b)

are more adapted

(c)

are fast growing

(d)

all the above

Assertion: Turmeric fights various kinds of cancer
Reason: Curcumin is an anti-oxidant present in turmeric

(a)

Assertion is correct, Reason is wrong

(b)

Assertion is wrong, Reason is correct

(c)

Both are correct

(d)

Both are wrong

What are exogenous buds?

How is polyspermy avoided in humans?

Expand (a) SRY (b) TDF

Given below is mRNA sequence. Mention the amino acids sequence that is formed after its translation.
3' AUGAAAGAUGGGUAA5'

Mention any two drugs to treat insomnia patient

Define ecology.

What will happen if all producers are removed from ecosystem?

What is maida? Mention its culinary purpose.

Name and explain the type of barriers which involve macrophages.

Taking the example of Peppered moth, explain the action of natural selection. What do you call the above phenomenon?

Explain the role of cry-genes in genetically modified crops.

What is ecological density, crude density and population density?

What is a biosphere reserve?

Why does the zygote divides only after the division of Primary endosperm cell.

What are the three types of synapsis? (or) Give the types of Synapsis.

Differentiate habitat from niche.

Which one gas is most abundant out of the four commonest greenhouse gases? Discuss the effect of this gas on the growth of plants?

Given below are the examples of symbiotic association in which one partner was mentioned. Write the name of the mutual co-partners.
(a) Azolla fem + _________
(b) Root nodules of legume plants + ______
(c) phycomycetous fungi + ________

1. The following is the illustration of the sequence of ovarian events (a-i) in a human female.
   
   a) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
   b) Name the ovarian hormone and the pituitary hormone that have caused the above-mentioned events.
   c) Explain the changes that occurs in the uterus simultaneously in anticipation.
   d) Write the difference between C and H.

2. Write the preventive measures of STDs.

1. Draw a flow chart depicting the steps of DNA fingerprinting technique.

2. Enumerate the characteristic features of Entomophilous flowers

1. Describe incomplete dominance exhibited by Mirabilis jalapa.

2. Write the protocol for artificial seed preparation.

1. Point out any five morphological adaptations of epiphytes.

2. Various stages of succession are given bellow. From that rearrange them accordingly. Find out the type of succession and explain in detail.
   Reed-swamp stage, phytoplankton stage, shrub stage, submerged plant stage, forest stage, submerged free floating stage, marsh medow stage.

1. Explain afforestation with case studies.

2. Explain the stepwise preparation of Bio-pest repellent from the leaves of Azadirachta indica