What is the longest genome?
149 billion nucleotides
Which is the largest known human gene?
The DMD gene, encoding the dystrophin protein, is one of the longest human genes known, covering 2.3 megabases (0.08% of the human genome) at locus Xp21. The primary transcript in muscle measures about 2,100 kilobases and takes 16 hours to transcribe; the mature mRNA measures 14.0 kilobases.
Which is smaller gene or DNA?
A gene is a short piece or stretch of DNA that control the hereditary material of organisms. The DNA molecules contains thousands of genes which is located inside chromosomes. Therefore, gene is smaller than DNA.
Is Gene bigger than chromosome?
From smallest to largest: nucleotide, gene, chromosome, genome. A gene is therefore composed of many pairs of nucleotides. A chromosome is a long strand of DNA which is coiled up with various proteins. A chromosome contains many genes.
What is a single unit of DNA called?
The basic unit used to make a strand of DNA is called a nucleotide. A single basic unit or “building block” of DNA consists of a sugar , a phosphate group and a base.
Is a cell bigger than a chromosome?
Chromosomes tend to be smaller than cells or nuclei, and genes are parts of chromosomes.
Which is bigger a cell or a nucleus?
Cells can vary between 1 micrometer (μm) and hundreds of micrometers in diameter. Within a cell, a DNA double helix is approximately 10 nanometers (nm) wide, whereas the cellular organelle called a nucleus that encloses this DNA can be approximately 1000 times bigger (about 10 μm).
What is larger than a cell?
Tissues are groups of cells that perform a common function, such as skeletal muscle tissue or fat tissue. They are therefore larger than cells. Organisms are made up of organs which are made up of tissues, and are therefore larger than tissues. Population, organism, tissue, cell, organelle, molecule.
What is the biggest element?
The heaviest element, in terms of atomic weight, is element 118 or oganesson. The element with the highest density is osmium or iridium.
How many atoms are in a person?
There are approximately 7 x 1027 atoms in the average human body. This is the estimate for a 70 kg adult human male. Generally, a smaller person would contain fewer atoms; a larger person would contain more atoms.
Which is smallest particle?
An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton’s Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.
Which is the smallest subatomic particle?
quark
Is anything smaller than a photon?
nothing is smaller than a photon. It has no matter. we can’t see a photon. It has no matter.