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How many pairs of chromosomes does a rat have?
Rats are medium-sized rodents that have long tails and are similar to mice. Rats have 42 chromosomes, or 21 pairs.
Egg and sperm cells are Haploid of Deploid?
Ploidy is the number of complete sets of chromosomes in a biological cell. In humans, the somatic cells that compose the body are diploid (containing two complete sets of chromosomes, one set derived from each parent), but sex cells (sperm and egg) are haploid. In contrast, tetraploidy (four sets of chromosomes) is a type of polyploidy and is common in plants, and not uncommon in amphibians, reptiles, and various species of insects. The number of chromosomes in a single non-homologous set is called the monoploid number (x). The haploid number (n) is the number of chromosomes in a gamete of an individual. Both of these numbers apply to every cell of a given organism. For humans, x = n = 23; a diploid human cell contains 46 chromosomes: 2 complete haploid sets, or 23 homologous chromosome pairs. In some species (especially plants), x and n differ, for example common wheat is an allopolyploid with six sets of chromosomes, two sets coming originally from each of three different species, with six sets of chromosomes in most cells and three sets of chromosomes in the gametes. The Australian bulldog ant, Myrmecia pilosula, a haplodiploid species has n = 1, the lowest known (and lowest theoretically possible) n. Euploidy is the state of a cell or organism having an integral multiple of the monoploid number, possibly excluding the sex-determining chromosomes. For example, a human cell has 46 chromosomes, which is an integer multiple of the monoploid number, 23. A human with abnormal, but integral, multiples of this full set (e.g. 69 chromosomes) would also be considered as euploid. Aneuploidy is the state of not having euploidy. In humans, examples include having a single extra chromosome (such as Down syndrome), or missing a chromosome (such as Turner syndrome). Aneuploidy is not normally considered -ploidy but -somy, such as trisomy or monosomy.Diploid (indicated by 2n) cells have two homologous copies of each chromosome, usually one from the mother and one from the father. The exact number of chromosomes may be one or two different from the 2 number yet the cell may still be classified as diploid (although with aneuploidy). Nearly all mammals are diploid organisms (the viscacha rats Pipanacoctomys aureus and Tympanoctomys barrerae are the only known exceptions as of 2004[verification needed]), although all individuals have some small fraction of cells that display polyploidy. Human diploid cells have 46 chromosomes and human haploid gametes (egg and sperm) have 23 chromosomes.
How much dna is too much?
There is a double helix of DNA in every cell in the human body. There are an estimated 3 billion base pairs of DNA inside of every human cell. These base pairs are organized into 23 chromosome pairs. -DrBeaver
Do rats have good memory compared to other animals?
Rats have excellent memory compared to many other animals. They are known for their ability to remember complex routes and solve problems.
How are mice and rats related to each other?
Mice and rats are both rodents and belong to the same family, Muridae. They are closely related and share many similarities in their physical characteristics and behavior.
How many pairs of chromosomes does a rat have?
Rats are medium-sized rodents that have long tails and are similar to mice. Rats have 42 chromosomes, or 21 pairs.
If a naked mole rat has 27 chromosomes in its sex cellshow many chromosomes would it have in its body cells?
Naked mole rats, like other animals, have a diploid number of chromosomes in their body cells, which is double the number of chromosomes in their sex cells (gametes). If a naked mole rat has 27 chromosomes in its sex cells, it would have 54 chromosomes in its body cells. This diploid number is achieved through the union of two haploid gametes during fertilization.
How many chromosomes are in a rats sex cells?
Rats have a total of 42 chromosomes, so their sex cells (gametes) contain half that number. Thus, rat sex cells have 21 chromosomes. This reduction occurs through the process of meiosis, which produces the sperm and egg cells necessary for reproduction.
How many bones in a rats body?
A rat body has 223 bones in it.
What kind of animals that both human have an chromosomes?
Rats, believe it or not.
How many pairs of chromosomes does a naked mole rat have?
Naked mole rats have 62 pairs of chromosomes, totaling 124 individual chromosomes. This diploid number is characteristic of their species and plays a role in their unique biological and physiological traits.
What is the chromosome number of rat and cat?
A cat has 38 chromosomes. I'm not sure about the rat yet.
Is a rats tail as long as its body?
no you can buy rats with a little nub for a tail
How do rats control their body temperature?
Rats control their body temp by regulating heat through their cute little tails.
What part of the body did the rats eat first?
the rats would eat the eyes first
How many movies has rats in them and what are they?
10000000 rats
Rats can not do this but most warm blooded animals can?
Rats can not regulate their body heat. Most mammals can regulate their body heat when their blood is high enough.
