Chromosomes

Why Does Down’s Syndrome Occur?

Down's syndrome is a genetic condition that happens because of the presence of an extra chromosome. It was first described…

2 months ago

What is a Molar Pregnancy?

Molar pregnancies are not common. One of every 1000 pregnancies are molar pregnancies. A molar pregnancy means there is no…

3 months ago

Trisomy in Humans

Trisomy is a genetic disorder in which a child is born with all or part of an extra chromosome. Normally…

3 months ago

Trisomy 18 Facts

Human beings are made up of cells that contain 23 sets, or pairs of chromosomes. Half of those chromosomes come…

4 months ago

Triple-X Females

Triple-X Females A female usually has only 2 X-chromosomes in each cell. In approximately 1 per 1,000 female births, a…

2 years ago

Is it a Girl or a Boy? Understanding How a Child’s Gender is Determined

I am a mother of four lovely girls. My younger sister (who came next to me) has two burly boys.…

2 years ago

Cama: The Camel Llama Hybrid

Hybrids are often created by putting two similar related species in the same pen and letting "nature" take is course.…

3 years ago

Why Can’t a Calico Cat Be Male?

Many pet enthusiasts know that calico and tortoiseshell cats are typically female. Some even brag that they've paid for a…

4 years ago

Biology Made Easy – Guide to Mitosis

Mitosis is the process of cell division that results in two cells identical to the original parent cell. Mitosis is…

4 years ago

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