Explain sex determination in these fish

Reference no: EM13111854

The platyfish has W, X, and Y sex chromosomes. Females are WY, WX, or XX and males are YY and XY. It is possible to generate WW fish in the lab, but in the environment they are presumably embryonic lethal. It is presently not known how sex is determined in these fish, but there are some theories consistent with how sex is determined in other systems. Propose a repression based mechanism to explain sex determination in these fish.

My initial thoughts would be that W and X produces repressor proteins and that Y produces a protein which acts an an effector; this would lead to the result that lack of transcription results in the female condition and transcription results in the male condition. However, this theory doesn't account for the lack of WW genotype in the population. Any thoughts?

Reference no: EM13111854

Questions Cloud

Test of hypothesis using dependent samples : The number of sit-ups that a person can do in one minute, both before and after a physical fitness course was recorded. The data is shown below for 10 randomly selected participants.

Determine the value of imported petroleum : Petroleum consumption in the US in 1990 supplied about 34.6E15 kJ of energy. Of this quantity, about 14.3E15 kJ was supplied by foreign sources.

Discuss how business owners and leaders can use : Discuss why it is just as important to analyze financial statements as it is to prepare them.

Is margins of error same-larger-smaller of girls than boys : Assume that results of survey were used to create seperate 99% confidence intervals for boys and girls. would the margins of error be same as, larger , or smaller than that for question one?

Explain sex determination in these fish : However, this theory doesn't account for the lack of WW genotype in the population. Any thoughts?

Find volume of gasoline needed to raise the co : Assume that an incorrectly adjusted lawn mower is operated in a garage such that the combustion reaction in the engine is:

Explain the importance of the scientific method : a.How can you explain the occurrence of birth defects (caused by altered genes) in children and grandchildren of WWII atomic bomb victims, when the victims themselves were only mildly affected?

How many generations, on average : A remnant population of giant tortoises on one of the Seychelles islands consists of 80 individuals.

Determine calculated value of the partial pressure : What is the calculated value of the partial pressure(atm) of O2 in acid mine water of pH 1.700, in which [Fe3+] = [Fe2+]?

User Account

All Pages