BOTANY SAMPLE QUESTIONS SET 1

1. POLLEN GRAINS ARE ABLE TO TOLERATE EXTREME TEMPERATURE AND DESICCATION BECAUSE THEIR EXINE CONSISTS OF :

  I) CUTIN 

  II) SUBERIN

  III) SPOROPOLLENIN

  IV) CALLOSE

2. OVULE INTEGUMENT GETS TRANSFORMED INTO

  I) SEED

  II) FRUIT WALL

 III) SEED COAT 

 IV) COTYLEDONS

3. THE WATER OF GREEN COCONUT IS : 

  I) SEED 

  II) MESOCARP 

  III) LIQUID ENDOSPERM 

  IV) ENDOCARP

4. SYNERGIDS ARE :

  I) HAPLOID

 II) DIPLOID

III) TRIPLOID

IV) HEXAPLOID

5. DOUBLE FERTILIZATION IN ANGIOSPERMS WAS DISCOVERED BY 

 I) STASBURGER

II) NAWASCHIN

III) MAHESWARI

IV) NONE OF ABOVE

6. OVULE IS ATTACHED TO THE PLACENTA OF OVARY WALL BY 

 I) PEDICEL

II) FUNICLE

III) PLACENTA

IV) NONE OF THESE

7. ENTRY OF POLLEN TUBE THROUGH CHALAZAL END IS CALLED

I) POROGAMY

II) ALLOGAMY 

III) BASIGAMY 

IV) SYNGAMY 

8. WHICH TERM WAS USED BY MENDEL TO REPRESENT HEREDITARY UNIT

I) FACTOR

II) MENDEL UNIT

III) ELEMENTE 

IV) ALLELE

9. IN ABO BLOOD GROUPS ,HOW MANY PHENOTYPES ARE FOUND ?

I) 1

II)5

III)4

IV)10

10. ALL THE GENES CONTAINED IN A HAPLOID NUCLEUS IS CALLED AS 

I) GENOME 

II) OPERON

III) CODON

IV) ALLELE

11. INHERITANCE OF FLOWER COLOUR IS AN EXAMPLE OF INCOMPLETE DOMINANCE,WHICH IS SEEN IN :

I) ANTIRRHINUM

II) PISUM

III) SOLANUM

IV) HIBISCUS

12. ORGANISMS PHENOTYPICALLY SIMILIAR BUT GENOTYPICALLY DIFFERENT ARE : 

I) HETEROZYGOTES

II) HOMOZYGOTES

III) MONOZYGOTES 

IV) MULTIZYGOTES

13. GENETICS TERM WAS PROPOSED BY 

I) MENDEL

II) MORGAN 

III) MAHESWARI

IV) BATESON

14. WHICH BLOOD GROUP PERSON CAN DONATE BLOOD TO ALL OTHER PERSONS 

I) O

II) A

III) AB

IV) B

15. t- RNA CONSISTING OF THREE UNPAIRED BASES CONSTITUTE :

I) h- RNA 

II) DNA

III) CODON 

IV)ANTICODON

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