How many autosomes and sex chromosomes dose a human egg have?
b. 23. Human eggs (and sperm) are haploid (have only one complete set of chromosomes). When an egg combines with a sperm, the resulting cell will have 23 + 23 = 46 chromosomes and will be diploid (have two complete sets of chromosomes).
Chimpanzees have 48 chromosomes in their somatic cells. How many chromosomes do you think are found in their s?
Chimpanzees have 24 chromosomes in their sex cells properly termed gametes. In the somatic cells there there are two sets of chromosomes, each chromosome has another like a pair of shoes. One chromosome out of the two comes from the mother and the other chromosome in the pair belongs to the father. In the gametes there is only one set of chromosomes. When the gamete fuses with the opposite sex gamete the two sets of chromosomes come together and form a somatic cell. Which chromosomes are chosen to be in the gametes, you ask? Well in the beginning a somatic cell in the gonads gets ready for mitosis, it replicates its chromosomes so that there are double the somatic number. Then it splits in two, each of which have the somatic number. Then those two cells split in two, each of which have the gamete or sex cell number which is always half the somatic cell number. The whole process is random in that the chromosomes from the mother and father are mixed up in the gametes. Also its random in that the chromosomes in each pair cross over or shuffle a piece of their length with each other. So the chromosomes are unique and not the same as they were in the somatic cells.
How many autosomes are in human somatic cells?
There 2 sex chromosomes in a somatic cell, 1 from the father and 1 from the mother. Girls have XX as their sex chromosomes, and guys have XY. Autosomes are the rest of the chromosomes (all but sex chromosomes). Since there are 46 chromosomes in all human somatic cells, and 2 of them are sex chromosomes, 44 chromosomes are autosomes. There are 23 pairs of chromosomes in a somatic cell (you get a set of 23 chromosomes from each of your parents, which adds up to 46 total).
How many chromosomes do humans have in each cell?
Humans have 46 chromosomes in each cell. During fertilization of the egg, the sperm nucleus containing 23 chromosomes from the paternal side fuses with the nucleus of the egg that contains 23 chromosomes from the maternal side. The result is the zygote that contains 46 chromosomes (23 pairs of chromosomes; one of each pair from either parent). From that single celled zygote comes all the cells of your body today that is formed as a result of uncountable number of cell divisions. At the end of each cell division, the resultant daughter cells contain the original 46 chromosomes each that is made possible by replication of chromosomes.However, your germ cells (sperm in males and egg in females) have half the number of chromosomes in your somatic cells (the cells of the body other than the germ cells), that is 23 chromosomes. This is because 23 from the sperm + 23 from the egg= 46 in the zygote = 46 in the adult human. This halving from 46 to 23 chromosomes is made possible by a process termed as meiosis.
Chromosomes and autosomes, help?
There are 40 chromosomes in somatic cells of the house mouse. a)How many chromosomes does a mouse receive from its father? b)Using the human genomic constitution as a model, How many autosomes are present in a mouse gamete? c)How many sex chromosomes are in a mouse ovum? d)How many autosomes are in somatic cells of a female? Thanks for anyone who takes on this complicated problem! Ugh
How many chromosomes in a human cheek and egg cell?
All types of human cells, save one type, have 46 chromosomes. The only type of cell which does not have 46 is the sex cells, which have only half of the number, so they have 23. The egg cell is a sex cell (found in female). So it must have 23 chromosomes. The human cheek cell is not a sex cell, so it must have 46 chromosomes. PS. There are two types of sex cells : sperms and the eggs. Only these two types have 23 chromosomes. All other cells have 46 chromosomes.
Does every human cell contain 23 pairs of chromosomes in its nucleus?
YES ! rightly said .All human cells contain 23 pairs of chromosomes in nucleus.Eventhough,Somatic & Gametic cells are present but ,they all have similar pairs.From above image one can know pairing of 23 chromosomes.Major difference is between somatic & gametic cells.Somatic cells are diploid (2n) & Gametic cells are haploid(n).Somatic cells will have all 23 pair of chromosome and divide by mitosis to help repair of cell damage,loss,wear n tear of tissues,etc…Whereas Gametic cells possess haploid set i.e.,only 23 chromosomes each cell : 22 autosomes + X or Y sex chromosome & divide by meiosis.Hence ,after fertilization the zygote shall be 2n as it will contain 23 chromosomes from each parent.Overall,23 pairs are to humans cell.Any variation in number of chromosomes will lead to abnormality like Turner’s syndrome where one X chromosome missing from zygote thus affecting the development.Whereas ,variation in traits is due to crossing over occuring in meiosis.Thankyou .
Each sperm cell of a horse contains 32 chromosomes. How many chromosomes are there in each of the horse's ?
There are 64 chromosomes. Sperm and egg cells always contain half the number of total chromosomes in the organism. Remember, since they are produced through meiosis, gametes (sperm and egg cells) will always have half the number of total chromosomes in the organism.