Arrange the layers of anther wall from locus to periphery

(a)

Epidermis,middle layers, tapetum, endothecium

(b)

Tapetum, middle layers, epidermis, endothecium

(c)

Endothecium, epidermis, middle layers, tapetum

(d)

Tapetum, middle layers endothecium epidermis

A typical anther is ________________

(a)

Bisporangiate

(b)

Tetrasporangiate

(c)

Unisporangiate

(d)

Multisporangiate

Observe the diagram and select the correct option mentioning the parts A, B, C and D

(a)

A	B	C	D
Radicle	Cotyledon	Testa	Plumule

(b)

A	B	C	D
Plumule	Cotyledon	Testa	Radicle

(c)

A	B	C	D
Cotyledon	Testa	Plumule	Radicle

(d)

A	B	C	D
Plumule	Radicle	Testa	Cotyledon

The genotype of a plant showing the dominant phenotype can be determined by _____.

(a)

Back cross

(b)

Test cross

(c)

Dihybrid corss

(d)

Pedigree analysis

Select the period for Mendel’s hybridization experiments.

(a)

1856 - 1863

(b)

1850 - 1870

(c)

1857 - 1869

(d)

1870 - 1877

What is the phenotypic ratio in case of incomplete dominance?

(a)

9: 7

(b)

3: 1

(c)

1: 2 : 1

(d)

1: 1 : 1 : 1

How many map units separate two alleles A and B if the recombination frequency is 0.09?

(a)

900 cM

(b)

90 cM

(c)

9 cM

(d)

0.9 cM

Which is not a feature of the chromosomal theory of inheritance?

(a)

Somatic cells of organisms are derived from zygote by repeated meiosis.

(b)

Chromosomes retain their structural uniqueness throughout the life of an organism.

(c)

Mendelian factors are located in chromosomes

(d)

Sutton and Boveri independently proposed the theory.

Assertion (A): Polyploidy is common in plants.
Reason (R): Polyploids possess more than 2 basic sets of chromosomes.

(a)

A is true R is false

(b)

Both A and R are false

(c)

A is true, R is not correct explanation for A

(d)

R explains A

The bacteria responsible for causing Crown Gall:

(a)

Escherichia coli

(b)

Bacillus subtilis

(c)

Bacillus thuringiensis

(d)

Agrobacterium tumefaciens

Statement 1: Bioventing procedure increases 02 flow to accelerate degradation of pollutants.
Statement 2: Bioaugmentation uses microbes to recover metal pollutants from contaminated sites.

(a)

Statement 1 is correct and Statement 2 is also correct.

(b)

Statement 1 is correct and Statement 2 is incorrect

(c)

Both the statements are incorrect.

(d)

Statement 1 is incorrect and Statement 2 is correct.

Identify the plant tissue used for virus free germplasm

(a)

Apical meristem

(b)

Intercalary meristem

(c)

Lateral meristem

(d)

Plate meristem

Read the given statements and select the correct option.
i) Loamy soil is best suited for plant growth as it contains a mixture of silt, sand and clay.
ii) The process of humification is slow in case of organic remains containing a large amount of lignin and cellulose.
iii) Capillary water is the only water available to plant roots as it is present inside the micropores.
iv) Leaves of shade plant have more total chlorophyll per reaction centre, low ratio of chl a and chl b are usually thinner leaves.

(a)

i, ii and iii only

(b)

ii, iii and iv only

(c)

i, ii and iv only

(d)

ii and iii only

Pond is a type of ______.

(a)

forest ecosystem

(b)

grassland ecosystem

(c)

marine ecosystem

(d)

fresh water ecosystem

Photosynthetically Active Radiation ranges between the wavelength of __________

(a)

400 - 600 nm

(b)

600 - 700 nm

(c)

400 - 500 nm

(d)

400 - 700 nm

Which type of ecosystem service does the genetic resources comes under?

(a)

Provisioning services

(b)

Supporting services

(c)

Regulating services

(d)

Cultural services

Assertion (A): Prosopis juliflora is native to Afghanistan.
Reason (R): Alien species refers to non-native species.

(a)

A is correct R is incorrect.

(b)

A is incorrect R is correct.

(c)

R explains A.

(d)

Both A and R are incorrect.

Match column I (crop) with column II (Corresponding disease resistant variety) and select the correct option from the given codes.

Column I	Column II
I) Cowpea	i) Himgiri
II) Wheat	ii) Pusa komal
III) Chilli	iii) Pusa Sadabahar
IV) Brassica	iv) Pusa Swarnim

(a)

I	II	III	IV
iv	iii	ii	i

(b)

I	II	III	IV
ii	i	iii	iv

(c)

I	II	III	IV
ii	iv	i	iii

(d)

I	II	III	IV
i	iii	iv	ii

Intraspecific hybridization is also termed as __________ 

(a)

Intravarietal hybridization

(b)

Intervarietal hybridization

(c)

Interspecific hybridization

(d)

Intergeneric hybridization

The plant source of Marijuana is ________

(a)

Andrograph is paniculata

(b)

Phyllanthus maderspatensis

(c)

Cannabis sativa

(d)

Papaver somniferum