Why are tortoiseshell cats female? Why are tortoiseshell cats female?

Biology

1 answer:

Neko [114]2 years ago

3 0

Answer:

All tortoiseshell and tortoiseshell and white (Calico) cats are female. But not all gingers are male, though most are. The reason is that in cats the colour gene is carried on the X chromosome. As females have two Xs they can express two colours in the coat, and if black is inherited from one parent and ginger (red) from the other, the result is a calico cat. The calico's brother, having only one X chromosome, would be either ginger or black, depending on the colour of the mother. I believe there was a case of an apparently male calico cat but it was found to have a mutation giving an XXY chromosome set-up, and was sterile. For a female to be ginger she would have to inherit red from both parents. This could happen if the father was ginger and the mother tortoiseshell for example. The white is inherited on a separate gene and is independent of the colour gene. It can appear on either gender and with any colour of coat. For some reason not understood it is usually found that in tortoiseshell and white cats the patches of black and ginger are larger and more distinct than in the plain tortoiseshell without white. A tabby pattern of stripes can also be inherited separately, resulting in a cat known as a "torby" (Tabby-tortoiseshell).

Explanation:

You might be interested in

Which hazard has occurred when you are working in a grain bin and you stand on or below the “bridged” grain, causing it to colla

FinnZ [79.3K]

<span>Suffocation is a most leading reason of death in grain storage bins. Grain handling industry is a high hazard industry where workers can be exposed to numerous serious and life threatening hazards. These hazards include: fires and explosions from grain dust accumulation, suffocation from engulfment and entrapment in grain bins, falls from heights and crushing injuries and amputations from grain handling equipment. </span>

4 0

2 years ago

Describe the base-pairing rules in any DNA molecule

In-s [12.5K]

The selective pairing of adenine (A) with thymine (T) and guanine (G) with cytosine (C) is based on the number of hydrogen bonds established between one of the purine bases and the one pyrimidine bases

6 0

2 years ago

Cells are circular, hollow structures that serve as building blocks of living things. fact or opinion

MariettaO [177]

Answer:

<em><u>FACT</u></em>

Explanation:

<h3>Cells as Building Blocks</h3>

<h3>A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism. Thus, cells are the basic building blocks of all organisms</h3>

7 0

2 years ago

Read 2 more answers

During the process of respiration and photosynthesis implants I was what are the three primary elements that cycle between the m

goblinko [34]

Those are glucose, oxygen and carbon dioxide (CO2).
<span>Respiration and photosynthesis are opposite processes in the plant cell. Photosynthesis makes the glucose and releases oxygen and they are used in cellular respiration to make ATP. The glucose is broken down during the respiration into CO2, which is used in photosynthesis. While H2O is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form H2O. </span>

5 0

3 years ago

Which of the following is NOT one of the three global wind patterns?

Kamila [148]

Answer:

I believe that the correct answer is d. Interglacial Winds

Explanation:

Please mark as brainiest ! Hope this helps!

7 0

3 years ago