Reproduction in Organisms

Monoecious plant of Chara shows occurrence of 

• antheridiophore and archengoniophore on the same point

• stamen and carpel on the same plant

• upper antheridium and lower oogonium on the same plant

• upper antheridium and lower oogonium on the same plant

Which of the following pairs is not correctly matched?

• Mode of reproduction                               Example
  Offset                                                        Water hyacinth
  
  
• Mode of reproduction                               Example
  Rhizome                                                     Banana
• Mode of reproduction                                       Example 
  Binary fission                                                      Sargassum 
• Mode of reproduction                                       Example 
  Binary fission                                                      Sargassum 

In vitro clonal propagation in plants is characterised by

• PCR and RAPD

• Northern blotting

• Electrophoresis and HPLC

• Electrophoresis and HPLC

Male gametes are flagellated in

• Polysiphonia

• Anabaena

• Ectocarpus

• Ectocarpus

In ginger vegetative propagation occurs through 

• rhizome

• offsets

• bulbils

• bulbils

Which is the most common mechanism of genetic variation in the population of sexually reproducing organism?

• Transduction

• Chromosomal aberrations

• Genetic drift

• Genetic drift

Which one of the following matches is correct?

• Phytophthora

  Aseptate mycelium

  Basidiomycetes

• Alternaria

  Sexual reproduction

  Deuteromycetes

• Mucor

  Reproduction by conjugation

  Asocmycetes

• Mucor

  Reproduction by conjugation

  Asocmycetes

What will you look for to identify the sex of the following?

• male frog - a copulatory pad on the first digit of the hind limb

• Female cock - anal cerci

• Male shark - claspers borne on pelvic fins

• Male shark - claspers borne on pelvic fins

Archegoniophore is present in 

• Chara

• Adiantum 

• Funaria

• Funaria

What is common between vegetative reproduction and apomixis?

• Both are applicable to only dicot plants

• Both bypass the flowering phase

• Both occur round the year

• Both occur round the year