The answer to ur question is A
Answer:
47 chromosomes
Explanation:
Meiosis is a kind of division that reduces the chromosome number of the daughter cells by half i.e. 2n - n. It occurs only in reproductive cells to produce sex cells or gametes. In humans, meiosis occurs to produce gametes (egg and sperm) that have 23 haploid chromosomes.
N.B: Somatic human cells have 46 chromosomes
According to this question, a meiotic error occurred during gamete formation, resulting in an egg that has 24 chromosomes. If that egg is fertilized by a normal sperm i.e. sperm with 23 chromosomes. A zygote that posseses (23 + 24) = 47 chromosomes will be produced.
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:
Larger animals have a lower surface area to volume ratio. This means they need transport systems like our circulatory system and exchange surfaces like our lungs or fish gills. In single-celled organisms such as protists, and small multicellular organisms, essential molecules will move to where they're needed by diffusion.
Explanation:
