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Helga [31]
3 years ago
8

in cat some are black , some are orange and some are calico (fur that is both black and orange) all calico cats are always femal

e this trait represents two inheritance patterns is this list which two and explain how you know
Biology
1 answer:
ANTONII [103]3 years ago
7 0

Answer:

The sex chromosomes (X and Y) determine whether a cat will be male or female. Each cat has a pair of sex chromosomes with the possible combinations of XX (female) and XY (male). The X chromosome also carries the coding gene for the black and orange colors in a calico's coat.

Explanation:

Female calico cats have two X chromosomes and therefore have two chromosomes with color code. Only if the cat gets one orange-coded X and one black-coded X, will she be calico, expressing both black and orange coloration.

Because male cats have one X chromosome with code for black or orange and one Y chromosome with no color genes, they cannot technically be calico. They'll only express either black or orange, but not both.

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