There are several different strains of E. coli, each having about five million (5,000,000) base pairs. For example, uropathogenic E. coli (the one commonly associated with urinary tract infections) has about 5,231,428 base pairs, while E. coli K-12 has 4,639,221. The number of base pairs an organism has in its genes is commonly referred to as genome size. A web search for "genome size E. coli" is how I found these numbers.
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)
That depends on the size of the chromosome. We can use the largest and smallest human chromosomes as examples, using size information from the Ensembl genome browser (www.ensembl.org). Human chromosome 1, the largest, is estimated to have 247,249,719 base pairs. That is, the DNA sequence in the chromosome is about 247 million base pairs long. Since DNA is double stranded, that equates to about 494 million nucleotides. The smallest chromosome, 22, on the other hand has 49,691,432 base pairs - about 50 million. Hence it has about 100 million nucleotides.
Chromosome 1 is the largest autosome in humans. It is approximately 249 million base pairs long and contains many genes related to various biological processes.
Real human chromosomes consist of different number of base pairs. For example, chromosome 1 is the largest and contains about 249 million base pairs, while chromosome 21 is the smallest and contains about 48 million base pairs. In total, all 46 human chromosomes contain approximately 3.2 billion base pairs.
There is one double helix DNA molecule per chromosome.
In terms of base pairs, the X chromosome is about 155 megabases (million bases), and the Y is about 57 megabases. Note that there can be variation in the lengths of Y chromosomes between men, due to different amounts of constitutive heterochromatin on the long arm. That is, the long arm of the Y contains repeated sequences. The number of these sequences can be different between individuals, thus the size of the chromosome can be different between men.
A chromosome is made up of many genes.
Well, you only have two choices or examples: X and Y.
in a homologous chromosome there are two chromosomes ( a chromosome and a sister chromosome)
The Calcutta Chromosome by Amitav Ghosh has 288 pages.
Chromosome number of neem 2n=2x=24
No, a gene is a specific region of DNA that contains the instructions for making a particular protein or RNA molecule. A chromosome is a long strand of DNA that can contain many genes as well as other genetic material. Each chromosome may contain hundreds or thousands of genes.