Answer:
The correct option is A) 1, 2, 3, 4, 7
Explanation:
As the walls of the cells are narrow and have microvilli, we can predict that the phenomenon of transferring materials by any means such as active transport might be occurring in the tissue.
Every tissue will have an epithelium and since the tissue has a single layer of cells only we can predict that the cells might be having a simple epithelium.
The presence of uni-layer or single cells also makes us infer that the tissue has columnar epithelium.
The presence of microvilli also suggest that secretion by exocytosis might be occurring in these tissues.
A mutation in the TYR gene causes the most common form of albinism.
Answer:
c. A chromosomal mutation can change the total number of chromosomes in the cell.
Explanation:
A gene mutation affects a single gene, and replication error is the main cause of gene mutation. A chromosomal mutation affects one part of chromosome or full chromosome. error in meiosis is the main cause of chromosomal mutation. Both mutations are responsible for a change in DNA. A chromosomal mutation leads to the change in total number of chromosomes in the cell.
