YEAR BIOLOGY chp# 18 2nd year important question

                              2^nd YEAR BIOLOGY  

 CH#18

MARKS 30                  TIME 1 hour

MCQs

1.WHICH OF FOLLOWING IS A LONG DAY PLANT

A) XANTHIUM          B) TOBACCO           C) HENBANE      D) SOYABEAN

2.TESTOSTERONE IS SECRETED BY

A) SERTOLI CELLS              B) INTERSTITIAL CELLS      C) EPIDYDMUS    D) A+B

3.PRIMARY OOCYTES ARE FORMED FROM OOGONIA BY

A) MITOSIS            B) MEIOSIS              C) BOTH              D) NONE

4.A SPIROCHETE BACTERIA CAUSES DISEASE OF SEXUAL ORGANS

A) GONORRHOA     B) SYPHILIS         C) GENITAL HERPES      D) AIDS

5.REPRODUCTION IS VERY IMPORTANT FOR SURVIVAL OF

A) SPECIES                 B) INDIVIDUAL     C) POPULATION          D) A+C

SHORT QUESTIONS

1.WHAT IS GENITAL HERPES & ITS CAUSE?

2.WHAT IS AFTERBIRTH?

3.WHAT IS AN OESTROUS CYCLE?

4.WHAT IS ROLE OF LUTEINIZING HORMONE  IN FEMALE REPRODUCTIVE CYCLE?

5.WHAT ARE SERTOLI CELLS AND THEIR FUNCTION?

6.WHAT IS DIPLOID PARTHENOGENESIS? EXAMPLE

7.WHAT IS VERNALIZATION & ITS IMPORTANCE?

8.WHAT IS CLIMACTERIC AND ITS SIGNIFICANCE?

LONG QUESTION

1.WRITE A NOTE ON PHOTOPRIODISM? 4

2.DRAW& LABEL FEMALE REPRODUCTIVE SYSTEM OF FROG…. 5