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Think of your body as a loft. In your loft there are storage boxes. In these boxes are a few things which are of use, but the rest is junk. Now, depending on the type of person you are, you may keep this junk for a long time, not bothering to get rid of it - or you may clear out the loft quite quickly.
What does this mean in relation to chromosomes?
Well, the chromosomes are those boxes, and the items within those boxes is DNA. About 5% of our DNA is active, is useful. The rest is, basically, junk. Some animals and plants, we've discovered, get rid of this junk rather quickly, whereas others keep it for a long time. We humans are somewhere in the middle. So the more junk DNA we have, the more chromosomes we have to store it.
Yes, some animal species can have an odd number of chromosomes due to various genetic anomalies or evolutionary adaptations. However, an odd number of chromosomes can lead to fertility issues or other reproductive challenges in some cases.
Cats and dogs have vastly different evolutionary histories. Since the time they split from their common ancestor, natural selection and gene mutation has slowly changed their Biology. The following is from www.Talkorigins.org:
"Chromosomes can split or join with little effect on the genes themselves. One human chromosome, for example, is very similar to two chimpanzee chromosomes laid end to end; it likely formed from the joining of two chromosomes (Yunis and Prakash 1982). Because the genes can still align, a change in chromosome number does not prevent reproduction. Chromosome counts can also change through polyploidy, where the entire genome is duplicated. Polyploidy, in fact, is a common mechanism of speciation in plants."
Essentially, chromosomes can be copied and modified without changing an organism too much. As a result, when two populations of animals are split, they can undergo tremendous changes in the number of chromosomes in their bodies.
Yes. This creates infertility in some species while others are fertile. Infertile examples are mules (horse/donkey cross) and zebroid (zebra/equine cross). Examples of fertile species are hybid horses (wild horse/domestic horse) and swamp wallabys (females w/11 chromosomes and males w/10). Humans born with an extra chromosome have Downs Syndrome.
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Do gametes have a even or odd number of chromosomes?
Gametes have an odd number of chromosomes due to the process of meiosis, where the number of chromosomes is halved. This allows for the fusion of gametes during fertilization to produce offspring with the correct number of chromosomes.
Why do animals have equal number of chromosomes?
Having an equal number of chromosomes allows for successful reproduction through the process of meiosis, where the number of chromosomes is halved to produce gametes. This ensures that offspring will have the correct number of chromosomes when they receive genetic material from each parent. Having an equal number of chromosomes also promotes genetic diversity through recombination during meiosis.
What organism has an odd number of chromosomes?
Humans have 23 pairs of chromosomes, totaling 46 chromosomes. This means that humans have an even number of chromosomes. However, most species have an odd number of chromosomes, such as some species of insects where the number of chromosomes can vary widely.
If an atom has a mass of 23 amu does that mean it has an odd number of protons?
Not necessarily. The mass of an atom is determined by the sum of its protons and neutrons. An atom with a mass of 23 amu could have an even or odd number of protons, depending on the specific element.
Could a human end up with special ability if they had more chromosomes than normal?
Having extra chromosomes in humans can result in genetic disorders, but it is unlikely to lead to the development of special abilities. Most genetic conditions associated with extra chromosomes come with a range of physical and intellectual disabilities rather than special abilities. The expression of genes on extra chromosomes typically disrupts normal physiological functions rather than enhancing them.
Do gametes have a even or odd number of chromosomes?
Gametes have an odd number of chromosomes due to the process of meiosis, where the number of chromosomes is halved. This allows for the fusion of gametes during fertilization to produce offspring with the correct number of chromosomes.
What animal has an odd number of whiskers?
Catfish have an odd number of whiskers. In fact, catfish are the only animal who have an odd number of whiskers.
Do animals have an even or odd number of chromosomes?
Humans have 46 chromosomes. To be more specific, they have 22 somatic (body) chromosomes from each parent, and one sex chromosome from each parent. Added together, humans have 46 chromosomes (or 23 pairs). However different animals have different numbers of chromosmes. But under normal circumstances, each has 1 copy from each parent, and 1 copy of a sex chromosome from each parent. For instance, mice have 40 chromosomes, a horse has 64, a cat and dog both have 38, and some species of elephants have 56. It depends on the animal because each animal has a different number of chromosomes.
Did any cell has odd number of chromosomes in it?
in humans the sperm and egg cells (gametes) have 23, half the number of chromosomes as in normal cells
Why do animals have equal number of chromosomes?
Having an equal number of chromosomes allows for successful reproduction through the process of meiosis, where the number of chromosomes is halved to produce gametes. This ensures that offspring will have the correct number of chromosomes when they receive genetic material from each parent. Having an equal number of chromosomes also promotes genetic diversity through recombination during meiosis.
Will hybirds reproduce?
Hybrids cannot reproduce due to chromosome numbers. An example can include a horse and a donkey. When each animal provides a gamete with a haploid number to make a mule, the mule ends up 63 chromosomes. That is an odd number. When the mule has to make its own gamete, the 32 chromosomes cannot pair with 31 donkey chromosomes. Thus, meiosis fails and gametes cannot be reproduced.
Is the greatest common factor an odd number and even number is always even?
No. Odd numbers only have odd factors. They could not have an even factor in common.
What organism has an odd number of chromosomes?
Humans have 23 pairs of chromosomes, totaling 46 chromosomes. This means that humans have an even number of chromosomes. However, most species have an odd number of chromosomes, such as some species of insects where the number of chromosomes can vary widely.
What odd number has the most factors?
That's just as meaningless a question as asking "what is the biggest number?" Just as there is no biggest number (you can always get bigger numbers by adding 1), there is no odd number with the most factors. You could multiply any odd number by 3, and get an odd number with another factor of 3.
Do mammals have an even or odd numbers of chromosomes?
Since humans have 26 chromosomes and are mammals that the chomosones will be even.
Which can be divided evenly by 5 odd numbers even numbers or both?
Any number evenly divisible by an even number is also even. A number evenly divisible by an odd number (such as 5) could be either even or odd.
Is 27 an odd number or even number?
27 is an odd number.
