• CBSE/
• AIPMT 2014/
• AIPMT Solved Paper 2010/
• AIPMT 2010 Biology

AIPMT 2010 Biology

  

Q. 23. Which one of the following statements about human sperm is correct?

1. Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilisation
2. The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation
3. Acrosome serves as a sensory structure leading the sperm towards  the ovum
4. Acrosome serves no particular function.  
   

Answer: (2)

Q 24.   The genetically-modified (GM) brinjal in India has been developed for:

1. Insect-resistance
2. Enhancing shelf life
3. Enhancing mineral content
4. Drought-resistance

Answer: (1)

Q. 25.  Apomictic embryos in citrus arise from:

1. Synergids
2. Maternal sporophytic tissue in ovule
3. Antipodal cells
4. Diploid egg

Answer: (2)

Q. 26.    One example of animals having a single opening to the outside that serves both as mouth as well as anus is:

1. Octopus
2. Asterias
3. Ascidia
4. Fasciola

Answer: (3)

Q. 27.    Membrane-bound organelles are absent in :

1. Saccharomyces
2. Streptococcus
3. Chlamydomonas
4. Plasmodium

Answer: (2)

Q. 28.    Keel is characteristic of the flowers of :

1. Gulmohur
2. Cassia
3. Calotropis
4. Bean

Answer: (4)