Answer:
Genetics is a branch of science that deals with the study of genes, their sequence, function, variation, and heredity.
Increasing understanding of genetics help in making new fields of health care, for example,
- Gene therapy helps in treating various genetic diseases such as cystic fibrosis et cetera.
- Molecular genetics help in the development of more precise methods for diagnosis such as ELISA.
- Pedigree analysis and karyotypes help in early detection of possible hereditary diseases.
- DNA fingerprinting helps in detecting criminal suspects, paternity test, identification of dead organism et cetera.
DNA is the main type of genetic material found in a cell. In addition, it is found in the nucleus of the cell, so (D) is correct. DNA in the nucleus is used in replication (through mitosis and meiosis) via daughter cells to continue cell growth.
Nodes. Leaves are attached the plant stem at areas called nodes .
Answer: The hydrogen bonds holding the base pairs together in a DNA molecule are relatively weak compared to other chemical bonds. ... The new nucleotides join together to form the sugar-phosphate backbone of a new strand of DNA. The result is two DNA molecules identical to the original.
Explanation:
