Question

please type and summarize below information in your own words using biology knowledge at least 6 sentences.

Influence of daylength on male hamster sexual behavior: Masking effects of testosteroneExposure of male hamsters to short photoperiods for 6–8 weeks causes deficits in sexual behavior with receptive females. The present experiment tested the hypothesis that short photoperiodic effects on behavior could be masked in the presence of chronic and stable levels of testosterone. Sexual behavior was tested 18 days later as the effects of this functional castration developed. These tests indicated that photoperiodic effects were much more obvious in the absence of testosterone than they were during week 7 tests when testosterone was still present. The behavior of the males that were transferred from one photoperiod to the other demonstrated that exposure to the short photoperiod for only 18 days was not sufficient to generate short photoperiod-like sexual behavior deficits. In contrast, exposure to the long photoperiod for 18 days was sufficient to reverse short photoperiodic effects that had already developed.

Answer 1

1. Influence of photoperiod on sexual behaviour of male hamster caused by masking effect of testosteron.
2. When male hamster exposed to short photoperiods for atleast 6-8 weeks causes deficits in sexual behaviour with receptive females.
3. The present experiment proves the hypothesis that short photoperiodic effects on behaviour could be masked in presence of chronic and stable levels of testosteron.
4. Sexual behavior was tested 18 days later as the effects of this functional castration developed.
5. 18 Days were not sufficient to generate short photoperiod -like sexual behaviour deficits.
6. While masking effect of testosteron can be reverse on exposure to long photoperiod for 18 days .