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What role do chromosomes and genes play in determining a child's heredity?
Genes are the basic unit of genetic inheritance. Chromosomes are the structures inside cells that contain the entire genome. Naturally, genes and the chromosomes that contain them, and how genes arrange themselves on the daughter chromosomes during meiosis are critical to the process of determining the heredity of the offspring.
How many chromosomes does a normal individual have?
The average human has 24 chromosomes, and autistic people have two copies of the 23rd in place of the 24th
How many chromosomes are present in each cell in this human?
There are 46 chromosomes in a normal human cell and 23 in the sex cells. People with down syndrome has 47 chromosomes.
How many chromosomes do colorblind people have?
2
What chromosomes are found in gays and lesbians?
People have the same number of chromosome pairs, no matter if they are gay, bi, straight, asexual, or anything else!
People with a Down syndrome have 27 chromosomes?
yes, whereas normal people have 23 pairs of chromosomes
What role do chromosomes and genes play in determining a child's heredity?
Genes are the basic unit of genetic inheritance. Chromosomes are the structures inside cells that contain the entire genome. Naturally, genes and the chromosomes that contain them, and how genes arrange themselves on the daughter chromosomes during meiosis are critical to the process of determining the heredity of the offspring.
How many chromosomes does a normal individual have?
The average human has 24 chromosomes, and autistic people have two copies of the 23rd in place of the 24th
Can you get Down syndrome from your father?
you can not "get" down syndrome, you are either born with it or you are not born with it. there has only been one documented case of a male with down syndrome fertilizing an egg and it resulted in a miscarriage. down syndrome is not something you can catch. it is a chromosomal defect, a fluke of nature. it is also known as Trisomy 21. typically advanced people are born with 46 pairs of chromosomes. each pair has only two chromosomes. people with down syndrome have an extra chromosome pair of the 21st set of chromosomes. so people with down syndrome have 47 pairs of chromosomes. Three to four percent of all cases of trisomy 21 are due to Robertsonian Translocation. In this case, two breaks occur in separate chromosomes, usually the 14th and 21st chromosomes. There is rearrangement of the genetic material so that some of the 14th chromosome is replaced by extra 21st chromosome. So while the number of chromosomes remain normal, there is a triplication of the 21st chromosome material. Some of these children may only have triplication of part of the 21st chromosome instead of the whole chromosome, which is called a partial trisomy 21. hope this helps your question. =]
Hypothesize why you may not look exactly look like a brother or a sister if you have the same parents?
This is because every person gets a set of chromosomes from one parent, and another set from another parent. That parent also got their chromosomes, one from each parent. Every human cell has 46 chromosomes, with the exception of gametes (sex cells). During meiosis, the 46 chromosomes replicate to 92. In prophase of meiosis I, crossing over occurs, when the homologous chromosomes exchange genetic material to create a recombinant. Furthermore, during metaphase I, there is independent assortment: the chromosomes from the parent A and parent B can be in any arrangement. When anaphase I occurs, the homologous chromosomes are pulled apart. The two cells will not be the same. When meiosis II takes place, the result is 4 gametes, each containing different genes due to crossing over and independent assortment. This happens in both parents. Therefore, when parent A and parent B have a second child, it is impossible for the second child to look exactly the same as the first child.
How many chromosomes are present in each cell in this human?
There are 46 chromosomes in a normal human cell and 23 in the sex cells. People with down syndrome has 47 chromosomes.
How many chromosomes do colorblind people have?
2
What chromosomes are found in gays and lesbians?
People have the same number of chromosome pairs, no matter if they are gay, bi, straight, asexual, or anything else!
Where did people follow the wooly mammoths to during the ice age?
Because they needed food and material to make clothes and blankets
How many chromosomes are in a genome?
23 i think -- There's no such thing as "a DNA. But it works the other way around: DNA doesn't contain chromosomes, but chromosomes contain DNA. A person has 23 chromosome pairs: 46 chromosomes. One (pair) of which decides gender. Some people aren't perfect and have 47 chromosomes. Maybe other 'combinations' exist too.
How many chromosomes are in a normal human body?
46.The cells of the human body, for example in the liver, brain, and muscles, contain two sets of chromosomes, and are called diploid. There are 23 chromosomes in each set, and we inherit 23 from each parent.
What type of chromosome do humans have?
Diffrent people have diffrent chromosomes.
