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How can two species have the same chromosome number yet have very different attributes?
Wiki User
∙ 12y ago
See, The difference in two species comes from there genetic code (genes) and not from the number of chromosomes present in their cell.. So even if two species have same number of chromosomes BUT different genetic code then they ARE LIKELY TO BE DIFFERENT!!
hope you have got your answer..:)
Wiki User
∙ 12y ago
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Polyploid speciation occurs through?
Polyploidy is to have two copies of each chromosome, itâ??s important in crossbreeds to allow reproduction. Polyploidy speciation requires altering a chromosome number; itâ??s more common in plant species.
What is the modal chromosome number?
The modal chromosome number is the most common chromosome number within a population or sample.
How many bases does a single human chromosome contain?
Every chromosome is a different size so the number of base pairs is different for each chromosome. X chromosome has more that 153 million base pairs (greater that 306 million bases) Y chromosome has around 50 million base pairs (around 100 million bases)
How does the alternation of meiosis and fertilization in the life cycles of sexually reproducing organisms maintain the normal chromosome count for each species?
Simple, Meiosis reduce the chromosome number in half while fertilization doubles the chromosome number. n=chromosome number Meiosis = 2n (primordial germ cells) ----> n (sperm cell/egg cell/polar bodies) Fertilization = sperm (n) + egg (n) ----> 2n (zygote)
How meiosis maintain a constant number of chromosome within a species?
Meiosis creates gametes (sperm and ova/eggs) which are involved in sexual reproduction. The result of meiosis is cells with half the number of chromosomes as a somatic (non-sex) cell. This ensures that when the gametes join during sexual reproduction, the resulting organism has the correct number of chromosomes (half from each gamete). Thus meiosis maintains the chromosome number.
Some species have the same chromosome number but they are different. Suggest an explanation?
Some species have same number of chromosomes but they are different. suggest an explanation
Some species have same number of chromosome but they are different .Suggest an explanation?
some species have same number of charosomes but they are different because Fusion is a common way for animal species to end up with a different number of chromosomes from their ancestors.
What might this suggest about the size and organization of chromosomes in different species?
they contain the same number of chromosome's :)
In plants and animals an offspring inherits How Many genes?
The number of genes and number of chromosomes inherited depend on the species. The number of chromosomes a species has is known as the chromosome number. For example, (disregarding polyploidy or polysomy) a human baby has 46 chromosomes, but a horse has 64. Chromosomes usually occur as one of a pair in humans, and so they have 23 pairs of chromosomes. However, it is common in plants to have many sets of chromosomes and so they do not occur in pairs, but in triplets, or as sets of 4, 5 or 6 etc. Some species of strawberries have 7 of each chromosome. The number of genes depends on how long the chromosome is, and each chromosome in each different species will have a different number of genes on the chromosome.
Compare the numbers of chromosomes in different species?
The chromosome number is specific for each type of organism. The exact chromosome number must be maintained for the species to continue. This means that as cells reproduce, the new cells must have the same number of chromosomes as did the original cells
Why does the nucleus of a fruit fly contain less chromosomes than the nucleus of a human?
Every species has a fixed number of chromosomes in its nucleus so every species has a different chromosome number from the other.
How many genes do cells obtain?
The number of genes varies from chromosome to chromosome and the number of chromosomes varies from species to species (from as few as 1 single chromosome per cell to as many 30,000 chromosome pairs per cell). Human cells have 23 chromosome pairs per cell.
What diversity of species in a community refers to the?
Number of different species
How many chromosome pairs are in a species with a haploid number of 68?
68 pairs .
What ant species has the chromosome number 2n equals 4?
all ants
How many genes does the chromosome carry?
The number of genes varies. Most of any chromosome consists of non-coding DNA, which does not contain any genes. Each chromosome has many chromatins. One gene consists of many chromatins. Therefore, one chromosome could have many genes.
What is the definition of 1n cell?
A 1n cell is a haploid cell, posessing one copy of each chromosome for that species. N=the number of different chromosomes present, 1=the number of sets of chromosomes.
