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sex chromosomes
- Thread starter Skye
- Start date
starwarsdad
Ye Olde Curmudgeon
Hmmmmm. Never really thought about it. Do turtles, lizards, or crocs have sex chromosomes?
I know that with turtles and crocs sex is determined by incubation temperature. Does that correlate into no sex chromosome?
I know that with turtles and crocs sex is determined by incubation temperature. Does that correlate into no sex chromosome?
Serpwidgets
New member
Yep, corns have sex chromosomes.
Google it, there should be plenty of info on the web about the sex chromosomes of snakes.
Google it, there should be plenty of info on the web about the sex chromosomes of snakes.
Rachel
Vet nurse in training!
In many organisms the sex of an offspring will be irreversibly determined by its
sex chromosomes, or rather, a set of genes on the chromosomes, regardless
of any environmental variation. This condition is known as genotypic sex
determination. However, in some organisms the immediate environment
determines whether the offspring will become a male or a female, a condition
referred to as 'environmental sex determination'. Ultimately, however,
environmental sex determination is also controlled by genes. Animals such as aligators and some lizards have their sex determined by environmental conditions.
Females are heterogametic in the snakes, UNlike human females are....so female snakes would be XY, for example, like human males are.
sex chromosomes, or rather, a set of genes on the chromosomes, regardless
of any environmental variation. This condition is known as genotypic sex
determination. However, in some organisms the immediate environment
determines whether the offspring will become a male or a female, a condition
referred to as 'environmental sex determination'. Ultimately, however,
environmental sex determination is also controlled by genes. Animals such as aligators and some lizards have their sex determined by environmental conditions.
Females are heterogametic in the snakes, UNlike human females are....so female snakes would be XY, for example, like human males are.
Last edited:
Human females are homogamic. XX
Human males are heterogamic. XY
(Homo = like, Hetero = unlike)
In snakes, the female's sex chromosomes are usually denoted by ZW and the male's as ZZ. This is the opposite situation as with mammals. In the snake, the male is homogamic and the female heterogamic.
Human males are heterogamic. XY
(Homo = like, Hetero = unlike)
In snakes, the female's sex chromosomes are usually denoted by ZW and the male's as ZZ. This is the opposite situation as with mammals. In the snake, the male is homogamic and the female heterogamic.