Answer:
The correct option is <em>Both Cell A&D.</em>
Explanation:
The diagram in the picture shows how a cell (A) undergoes the process of replication and produces a cell (B) containing one full set of double chromosomes.
Then, the cell undergoes the process of mitosis to produce two daughter cells (C & D).
Mitosis can be described as a method of asexual reproduction in which the daughter cells produced are identical to the parent cells and are also identical to each other. Hence, the genetic content of the cell C will be the same as the genetic content of cells A & D.
Answer:
The skin is made up of four different kinds of cells which are:
Keratinocytes: They form tight junctions with the nerves of the skin.
Melanocytes: These are the pigment producing cells.
Langerhans cells: These are the immune cells of the skin.
Merkel cells: They show some sensory responses.
The blood cell is made up of different cells which are:
White- blood cells: These provide the body with immunity and helps to fight diseases. There are different types of white blood cells which perform various immune functions.
Red-blood cells: Red-blood cells are involved in the travel of oxygenated and de-oxygenated blood.
Platelets: These help in the formation of clots and to stop bleeding during an injury.
Answer:
Crossing over
Explanation:
Genetic variation is increased by meiosis
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I.
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