What is the function of chromatin in animal cell?
What is the function of chromatin in animal cell?
Chromatin is a complex of DNA and protein found in eukaryotic cells. Its primary function is packaging long DNA molecules into more compact, denser structures.
What is chromatin in biology?
Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells. Nuclear DNA does not appear in free linear strands; it is highly condensed and wrapped around nuclear proteins in order to fit inside the nucleus. Chromatin exists in two forms.
What is the main function of chromosomes?
Chromosomes carry the basic genetic material DNA which is responsible to provide hereditary characteristics and genetic information to the various cells. The cellular functions are important for the growth and survival of living organisms.
Which is the basic unit of chromosome?
nucleosome
How many chromosomes can a human have?
Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. In fact, each species of plants and animals has a set number of chromosomes.
What happens if you have three chromosomes?
A common form of aneuploidy is trisomy, or the presence of an extra chromosome in cells. “Tri-” is Greek for “three”; people with trisomy have three copies of a particular chromosome in cells instead of the normal two copies. Down syndrome is an example of a condition caused by trisomy .
Can you remove a chromosome?
Researchers at the University of Washington have used a new medical procedure to remove the extra copy of chromosome 21 in cell cultures derived from a person affected by Down syndrome. The new technique is remarkable in its ability to completely remove the chromosome without affecting portions of the genetic code.
What happens if you have 44 chromosomes?
Unless this chromosome is the X, Y or number 21, the usual result is miscarriage or being born with severe problems. In this case it would almost certainly result in miscarriage. In fact, the 44 chromosome man’s family has a long history of miscarriages and spontaneous abortions.
Can you have 50 chromosomes?
Abstract. ALL patients with a hyperdiploid karyotype of more than 50 chromosomes (high hyperdiploidy) carry a better prognosis in contrast to patients presenting with other cytogenetic features, and an appropriate less intensive therapy protocol should be developed for these patients.
Is a YY chromosome possible?
Males with XYY syndrome have 47 chromosomes because of the extra Y chromosome. This condition is also sometimes called Jacob’s syndrome, XYY karyotype, or YY syndrome. According to the National Institutes of Health, XYY syndrome occurs in 1 out of every 1,000 boys.
How many chromosomes does a snake have?
36 chromosomes