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What might happen if an egg cell received two X chromosomes during meiosis instead of one?
The offspring could have three X chromosomes or two X chromosomes and a Y chromosome.
What is the term for having two chromosomes of each pair- Normal body cells?
Diploid is the term for cells that contain two chromosomes of each pair. Euploid is a term meaning normal body cells.
Which term defines the distance between two genes on a single chromosomes?
genetic identity
Why is it that a mongoloid person have 65 chromosomes?
People with Down syndrome, also called mongoloidism have 47 chromosomes. Having 65 chromosomes would be lethal, as normally having 47 chromosomes is lethal. Down syndrome is also known as trisomy 21, because instead of two copies of chromosome 21, a person with Down syndrome has three copies, which accounts for the 47th chromosome.
Can you compare the chromosomes of diploid cell to a shoe closet?
The diploid cells come in twenty three pairs of chromosomes. just like twenty three pairs of shoes. Each always has two.
What might happen if an egg cell received two X chromosomes during meiosis instead of one?
The offspring could have three X chromosomes or two X chromosomes and a Y chromosome.
How is Down syndrome cause?
Down's sydrome is caused by trisomy 21, when there are three 21st chromosomes instead of the normal two.
Can someone have less than 46 chromosomes?
It is certainly possible to have more than 46 as in Trisomy 21 (or down syndrom) where "one cell has two 21st chromosomes instead of one, so the resulting fertilized egg has three 21st chromosomes".
What is the term for having two chromosomes of each pair- Normal body cells?
Diploid is the term for cells that contain two chromosomes of each pair. Euploid is a term meaning normal body cells.
In one kind abnormal chromosome inheritance called down syndrome a child has three copies of?
an adnormal number of chromosomes ofter results in
What is a polyploidi?
An organism that contains more than two sets of chromosomes.
Which term defines the distance between two genes on a single chromosomes?
genetic identity
Why is it that a mongoloid person have 65 chromosomes?
People with Down syndrome, also called mongoloidism have 47 chromosomes. Having 65 chromosomes would be lethal, as normally having 47 chromosomes is lethal. Down syndrome is also known as trisomy 21, because instead of two copies of chromosome 21, a person with Down syndrome has three copies, which accounts for the 47th chromosome.
Why do sexual reproduction results in more genetic variation in a species?
It combines different sets of DNA, instead of replicating the same set.
What three characteristics of the chromosomes are the most useful in matching homologous pairs?
There are two main characteristics of the chromosomes that are the most useful in matching homologous pairs. These two are size and viz.
What is the term that describes the condition in which a cell contains two sets of homologous chromosomes?
What refers to having two sets of chromosomes?
What is a form of oxygen that has three oxygen atoms in each molecule instead of the usual two?
Ozone has three oxygen molecules instead of two.
