Choose the correct statement from the following

(a)

Gametes are involved in asexual reproduction

(b)

Bacteria reproduce asexually by budding

(c)

Conidia formation is a method of sexual reproduction

(d)

Yeast reproduce by budding

An eminent Indian embryologist is ______.

(a)

S.R. Kashyap

(b)

P. Maheswari

(c)

M.S. Swaminathan

(d)

K.C. Mehta

Identify the correctly matched pair.

(a)

Tuber - Allium Cepa

(b)

Sucker - Pistia

(c)

Rhizome - Musa

(d)

Stolon - Zingiber

Pollen tube was discovered by ______.

(a)

J.G. Kolreuter

(b)

G.B. Amici

(c)

E. Strasburger

(d)

E. Hanning

Size of pollen grain in Myosotis ______.

(a)

10 micrometer

(b)

20 micrometer

(c)

200 micrometer

(d)

2000 micrometer

How many different kinds of gametes will be produced by a plant having the genotype AABbCC?

(a)

Three

(b)

Four

(c)

Nine

(d)

Two

Which one of the following is an example of polygenic inheritance?

(a)

Flower colour in Mirabilis Jalapa

(b)

Production of male honey bee

(c)

Pod shape in garden pea

(d)

Skin Colour in humans

In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F₂ generation of the cross RRYY x rryy?

(a)

Only round seeds with green cotyledons

(b)

Only wrinkled seeds with yellow cotyledons

(c)

Only wrinkled seeds with green cotyledons

(d)

Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons

The A and B genes are 10 cm apart on a chromosome. If an AB/ab heterozygote is testcrossed to ab/ab, how many of each progeny class would you expect out of 100 total progeny?

(a)

25 AB, 25 ab, 25 Ab, 25 aB

(b)

10 AB, 10 ab

(c)

45 AB, 45 ab

(d)

45 AB, 45 ab, 5 Ab, 5aB

If haploid number in a cell is 18. The double monosomic and trisomic number will be _____.

(a)

35 and 37

(b)

34 and 37

(c)

37 and 35

(d)

17 and 19

Genetic engineering is _____.

(a)

making artificial genes.

(b)

hybridization of DNA of one organism to that of the others.

(c)

production of alcohol by using micro organisms.

(d)

making artificial limbs, diagnostic instruments such as ECG, EEG etc.,

Consider the following statements:
I. Recombinant DNA technology is popularly known as genetic engineering is a stream of biotechnology which deals with the manipulation of genetic materials by man invitro
II. pBR322 is the first artificial cloning vector developed in 1977 by Boliver and Rodriguez from E.coli plasmid
III. Restriction enzymes belongs to a class of enzymes called nucleases.
Choose the correct option regarding above statements

(a)

I & II

(b)

I & III

(c)

II & III

(d)

I,II & III

Micro propagation involves _____.

(a)

vegetative multiplication of plants by using micro-organisms.

(b)

vegetative multiplication of plants by using small explants.

(c)

vegetative multiplication of plants by using microspores.

(d)

Non-vegetative multiplication of plants by using microspores and megaspores.

Virus free plants are developed from _____.

(a)

Organ culture

(b)

Meristem culture

(c)

Protoplast culture

(d)

Cell suspension culture

The prevention of large scale loss of biological integrity ____.

(a)

Biopatent

(b)

Bioethics

(c)

Biosafety

(d)

Biofuel

Which of the following is / are not a natural ecosystem?

(a)

Forest ecosystem

(b)

Rice field

(c)

Grassland ecosystem

(d)

Desert ecosystem

Pond is a type of ______.

(a)

forest ecosystem

(b)

grassland ecosystem

(c)

marine ecosystem

(d)

fresh water ecosystem

Ecosystem consists of ____.

(a)

decomposers

(b)

producers

(c)

consumers

(d)

all of the above

With respect to Eichhornia
Statement A: It drains off oxygen from water and is seen growing in standing water.
Statement B: It is an indigenous species of our country.

(a)

Statement A is correct and Statement B is wrong

(b)

Both Statements A and B are correct

(c)

Statement A is correct and Statement B is wrong.

(d)

Both statements A and B are wrong

The unit for measuring ozone thickness _____.

(a)

Joule

(b)

Kilos

(c)

Dobson

(d)

Watt

Match Column I with Column II

Column I	Column II
i) William S. Gaud	I) Heterosis
ii) Shull	II) Mutation breeding
iii) Cotton Mather	III) Green revolution
iv) Muller and Stadler	IV) Natural hybridization

(a)

i	ii	iii	iv
I	II	III	IV

(b)

i	ii	iii	iv
III	I	IV	II

(c)

i	ii	iii	iv
IV	II	I	IV

(d)

i	ii	iii	iv
II	IV	III	I

Importing better varieties and plants from outside and acclimatising them to local environment is called _____.

(a)

cloning

(b)

heterosis

(c)

selection

(d)

introduction

Dwarfing gene of wheat is ______.

(a)

pal 1

(b)

Atomita 1

(c)

Norin 10

(d)

pelita 2

Which one of the following are the species that are crossed to give sugarcane varieties with high sugar, high yield, thick stems and ability to grow in the sugarcane belt of North India?

(a)

Saccharum robustum and Saccharum officinarum

(b)

Saccharum barberi and Saccharum officinarum

(c)

Saccharum sinense and Saccharum officinarum

(d)

Saccharum barberi and Saccharum robustum

Tectona grandis is coming under family _____.

(a)

Lamiaceae

(b)

Fabaceae

(c)

Dipterocaipaceae

(d)

Ebenaceae