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Answer:
The correct answer will be option-C
Explanation:
Louse-bourne relapsing fever is a disease which is characterised by having the muscle aches and the episodes of fever.
The disease is a vector-borne disease in which the pathogen spirochete <em>Borrelia recurrentis</em> which lives in the gut of the body louse- <em>Pediculus humanus humanus </em>completes its life cycle and when body louse is crushed gets released on to the human skin and thus penetrates the humans. The disease could prove fatal if no treatment is provided at the right time.
Thus, Option-C is the correct answer.
Answer:
Mycorrhizas are symbiotic associations essential for one or both partners, between a fungus.....
If I assume that random segregation of chromosomes takes place during spermatogenesis and all sperms are viable then I will take the male through meiosis.
The three chromosomes are +, +, ey
Then you double them into sister chromatids which is ++, ++, eyes.
If I consider all possible alignments during metaphase as, the three homologous pairs and gather at the metaphase plate.
Remember that any two of the three pairs will join together and odd pair out will line up at the metaphase plate with no partner pair.
There are three different arrangements which are possible for the three homologous pairs.
Two of the three possible arrangements will segregate and make two sperm with +ey and two sperm with +. The other arrangement will segregate and make two sperm with ++ and two sperm with ey.
When meiosis is being done, then the sperm genotypes and their proportions are,
1/3+ey, 1/3+, 1/6++, 1/6ey
According to the research, the correct option is cell membrane. It enables eukaryotic cells to keep biochemicals and related structures in close proximity.
<h3>What is cell membrane?</h3>
It is defined as a laminar structure formed mainly by lipids and proteins that prevents the entire biochemical content of the cell from dispersing and defines its limits.
It enables the exchange of water, gases and nutrients between the cell and the environment that surrounds it and has proteins that perform functions of connection, transport, reception and catalysis.
Therefore, we can conclude that according to the research, the correct option is cell membrane. It enables eukaryotic cells to keep biochemicals and related structures in close proximity.
Learn more about eukaryotic cells here: brainly.com/question/3171977
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