Chromosomes are composed of deoxyribonucleic acid (DNA) mole
There are mainly two molecules that function as genetic material in living organisms.
These are ribonucleic acid(RNA) and deoxyribonucleic acid(DNA).
The organisms having DNA as genetic material require packaging of DNA as it is a long polymer of deoxyribonucleotides.
In the case of human beings, the length of DNA in a cell is approximately 2.2 meters which is very large as compared to the size of the nucleus( approximately 10^-6 meters).
So, the DNA has to be made compact for it to be present inside the nucleus of a cell.
Therefore, the DNA present inside the nucleus of a cell undergoes coiling and compaction through several stages before finally becoming a chromosome, which is shown in the adjoining diagram.
Thus, chromosomes are composed of deoxyribonucleic acid (DNA) molecules.
To know more about "DNA Packaging", refer to the following link:
brainly.com/question/14702559?referrer=searchResults
#SPJ4
Answer: The probable genotype of the patient is a homozygous recessive allele (SS)
Explanation: Sickle cell is a recessive disorder, therefore it must occur in a homozygous state in order to manifest phenotypically. When it occurs in a heterozygous state AS, the dominant allele A will overshadow its effect. Sickle cell is a genetic disease caused by abnormal haemoglobin in the blood which gives the red blood cells a sickle shape denoted as S. A normal haemoglobin gives the red blood cells a disc shape and its denoted by A.
Answer:
The correct answer is 3. peritrichous
Explanation:
Flagella is the surface structure found in bacteria that helps in the locomotion of the bacteria. There can be single flagella that can be located at one end of the bacteria or many flagella present on all over the cell surface of the bacteria.
If a bacteria contains only one flagella at one end it is called monotonous. If many flagella are present at one end then it is called lophotrichous. When both the end of bacterial cell contains an equal amount of flagella then the bacteria is amphitrichous.
Peritrichous are those bacteria which contains many flagella that are located all over the surface of their body, for example, E. coli is the bacteria present in human intestine having flagella distributed all over its surface.
Answer:
1. If you have two copies of the allele for brown hair, you are homoozygous for that trait.
2. If you have two copies of the allele for brown hair, you are homoozygous for that trait.
3. Since sickle cell disease requires two alleles that are alike, a person with a heterozygous would not have the disease.
4. If both gene alleles are different, the organism is heterozygous for that particular trait.
Change the "homoozygous" in the sentences
Explanation:
Genetics yo,