Go to http://www.penisland.com, and it will tell you what you need to know.
If the male parent has genotype AS and the female parent has genotype AA what is the offspring?
One way to determine the male's genotype would be to breed him to females with a known genotype of Black-Black. If any resultant calves were born with a white coat, you would then know that the male were Black-White. If calves were consistently black coated, you could be fairly certain he was also of the Black-Black genotype.
Filled squares
For the case of the human, an individual with XX genotype is female. Other organisms have different ways of determining sex.
Phenotype is the way a specific trait is displayed by the organism. Genotype is all the genetic information present at the gene locus on the chromosome pair. If the phenotype is recessive the genotype will be designated by two lower case letters. Ex. aa is black If the phenotype is dominant the genotype could be designatedtwo upper case letters or one upper case and one lower case letter. Ex. Aa or AA is red.
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If the male parent has genotype AS and the female parent has genotype AA what is the offspring?
The genotype for a male is XY. A female is XX. The 23rd homologous pair is the sex gene that determines this.
square
XY
xy
XY
Maleness is not a genotype but a combination of sex chromosomes. A normal human male has an X as well as a Y chromosome.
In a genetic pedigree, males are represented by squares while females are represented by circles.
A male grasshopper's genotype is XO. A female grasshopper's genotype is XX. X represents the presence of a sex chromosome, and O represents the lack of a sex chromosome.
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One way to determine the male's genotype would be to breed him to females with a known genotype of Black-Black. If any resultant calves were born with a white coat, you would then know that the male were Black-White. If calves were consistently black coated, you could be fairly certain he was also of the Black-Black genotype.