Answer:
Non-disjunction
Explanation:
non-disjunction is occuring during anaphase I of meiosis I, this means that at least one pair of homologous chromosomes did not separate. The end result is two cells that have an extra copy of one chromosome and two cells that are missing that chromosome
fun facts:
(Nondisjunction occurs when chromosomes fail to segregate during meiosis; when this happens, gametes with an abnormal number of chromosomes are produced. The clinical significance is high: nondisjunction is the leading cause of pregnancy loss and birth defects)
The role of carbohydrates<span> is to provide energy, as they are the body's main source of fuel, needed for physical activity, brain </span>function<span> and operation of the organs. All the cells and tissues in your body need </span>carbs<span>, and they are also important for intestinal health and waste elimination.</span>
Answer:RNA polymerase binds to a sequence of DNA called promoter found near the beginning of the gene
Explanation: each gene has it own promoter. Once bound, RNA polymerase seperates the DNA strands, providing the single-stranded bind needed for transcription
The study of fossils shows that the eukaryotic cells have been evolved from the prokaryotic cells. The endosymbiotic theory has been used to study the evolution of eukaryotic cells.
The endosymbiotic theory states that:
- Endosymbiotic theory is also referred to as the theory of symbiogenesis. The theory explains the evolution of eukaryotic cells from prokaryotic cells.
- The theory explains the presence of chloroplasts and mitochondria, and how these organelles form the eukaryotic cells. The theory explains the origin of mitochondria in animal cells and chloroplasts in plant cells.
Thus, the endosymbiotic theory defines the development of eukaryotic cells from the prokaryotic cells.
To know more about endosymbiotic theory, refer to the following link:
brainly.com/question/2957447
