The number of F2 plants found similar to F1 phenotype and genotypes, respectively in a total of 128 plants in F2 progeny of a Mendelian dihybrid cross:

1.  48,32

2.  72,32

3.  48,24

4.  72,48

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4
Correct Answer :

72,32


Explanation :
No Explanation available for this question

Study the following statements :A) A homozygous tall plant is crossed with homozygous dwarf plantB) A heterozygous tall plant is selfedC) A heterozygous tall plant is crossed with homozygous dwarf plantD) A heterozygous tall plant is crossed with homozygous tall plantThe probability of tall character appearing in the progenies in terms of percentage respectively would be(A)   (B)   (C)   (D)

1.  75% 25% 100% 100%

2.  100% 100% 25% 75%

3.  100% 75% 50%100%

4.  100% 50% 75% 100%

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4
Correct Answer :

100\% 75\% 50\%100\%


Explanation :
No Explanation available for this question

Two filaments of Spirogyra aplanospora are observed. One of the filaments has 150 cells another contains 225 cells. If all the cells in both the filaments are involved in asexual reproduction, what is the ratio of new filaments developed from them

1.  1:1

2.  3:5

3.  1:2

4.  2:3

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4
Correct Answer :

2:3


Explanation :
No Explanation available for this question

A male branch of Funaria has antheridia and produced a sum total of 1400 spermatozoids. What is the number of androcyte mother cells in each antheridium assuming each of the antheridia has the same number of androcytes

1.  70

2.  340

3.  960

4.  16

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4
Correct Answer :

70


Explanation :
No Explanation available for this question

Trace the correct sequence of stages in the development of male gametophytc in Cycas, Starting from microspore:

1.  Generative cell → Body cell → Antheridial cell → Antherozoids

2.  Tube cell → Antheridial cell → Stack cell → Antherozoids

3.  Antheridial cell → Stack cell → Tube cell → Generative cell

4.  Antheridial cell → Generative cell → Body cell → Antherozoids

View Answer  
4
Correct Answer :

Antheridial cell → Generative cell → Body cell → Antherozoids


Explanation :
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Identify the trisaccharides in the following:

1.  Mannose

2.  Maltose

3.  Raffinose

4.  Galactose

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4
Correct Answer :

Raffinose


Explanation :
No Explanation available for this question

Kryotype means a:

1.  single (haploid) set of chromosomes of an organism

2.  diagrammatic representation of the chromosomes

3.  genes constituting a single set of chromosomes

4.  type of nucleus of an organism

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4
Correct Answer :

single (haploid) set of chromosomes of an organism


Explanation :
No Explanation available for this question

A student observed 31 Quisqualis plants each with 36 nodes, 15 Hibiscus plants each with 21 nodes and 77 Calotropis plants each with 11 nodes. All these plants contain leaves at every node. What will be the total number of leaves of these three plants put together

1.  2593

2.  1585

3.  237

4.  4241

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4
Correct Answer :

4241


Explanation :
No Explanation available for this question

Identify two correct statements from the following (I) A single male and few female flowers are present in a flower like inflorescence in Poinsellia(II) Sessile or subsessile flowers formed in the axils of leaves are crowded at the nodes in Leonotis(III) In Ficus, a fruit like inflorescence is present with all fertile flowers(IV) The floral axis is sympodial in Hamelia

1.  (II),(IV)

2.  (I), (IV)

3.  (II), (III)

4.  (I), (III)

View Answer  
4
Correct Answer :

(II),(IV)


Explanation :
No Explanation available for this question

From the following identify the correct order of plants which exhibit hypogynous, perigynous and epigynous flowers respectively:I) Physalis, Sesbania Tridax II) Lathyrus, Tagetus, SmillaxIII) Tephprsia, Lathyrus, Tridax IV) Abutilon, Lathyrus, Tagetus

1.  (I), (III)

2.  (II), (IV)

3.  (II),(III)

4.  (I), (IV)

View Answer  
4
Correct Answer :

(I), (IV)


Explanation :
No Explanation available for this question
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