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When and why does meiosis occur?
Meiosis occurs in sexually-reproducing organisms during the formation of gametes (sperm and egg cells). It is necessary to reduce the chromosome number by half, ensuring that when the gametes combine during fertilization, the resulting offspring will have the correct number of chromosomes.
What are the different types of sexual reproduction in organisms?
The different types of sexual reproduction in organisms include internal fertilization, external fertilization, and self-fertilization.
After meiosis how many chromosomes does each new cell have?
Each new cell produced after meiosis has half the number of chromosomes compared to the original cell, so each new cell will have half the number of chromosomes as the parent cell. This reduction in chromosome number is important for maintaining the correct chromosome number in sexually reproducing organisms.
What laboratory tool is used for growing or reproducing live specimens?
An incubator is commonly used in laboratories for growing or reproducing live specimens. It provides controlled conditions such as temperature, humidity, and lighting to support the growth of various organisms.
What are three of the life procsses that living organisms do?
Three life processes that living organisms do are obtaining and using energy, responding to the environment, and reproducing to ensure the survival of their species.
How does the alternation of Meiosis and fertilization in the life cycle of sexually reproducing organisms maintain normal chromosome count for each species?
Simple, Meiosis reduce the chromosome number in half while fertilization doubles the chromosome number. n=chromosome number Meiosis = 2n (primordial germ cells) ----> n (sperm cell/egg cell/polar bodies) Fertilization = sperm (n) + egg (n) ----> 2n (zygote)
If meiosis did not occur in sexually reproducing organisms?
If meiosis did not occur in sexually reproducing organisms, the chromosome number would double in each generation. Sexual reproduction results in new combinations of genetic traits.
When and why does meiosis occur?
Meiosis occurs in sexually-reproducing organisms during the formation of gametes (sperm and egg cells). It is necessary to reduce the chromosome number by half, ensuring that when the gametes combine during fertilization, the resulting offspring will have the correct number of chromosomes.
How does the significance of meiosis maintained the chromosome number?
No. Meiosis results in halving of chromosome number. Chromosome number after one round of meiosis is half that of original chromosome number. Generally, meiosis takes place during gamete formation. So when two gametes fuse, they lead to restoration of the chromosome number. Hence chromosome number can be maintained in sexually reproducing organisms.
Why is it particularly difficult for the systematist to classify asexually reproducing organisms as a species?
Asexually reproducing organisms do not interbreed
In sexually reproducing organisms mutations can be inherited if they occur in what in the body?
In sexually reproducing organisms, mutations can be inherited if they occur in the germ cells, which are the reproductive cells (sperm and eggs). These mutations can be passed on to the next generation during fertilization, potentially affecting the offspring's traits. Mutations in somatic cells, on the other hand, do not get passed to future generations.
What is the significance of alternation of generation?
alternation of generation is very important in plants because it results into the formation of a variety of new organisms... it is also important because it provides such organisms which have more chances of survival...
What is the significance of alternation of generations?
alternation of generation is very important in plants because it results into the formation of a variety of new organisms... it is also important because it provides such organisms which have more chances of survival...
Why are chromosome always an even number in organisms?
No, some bacteria and other unicellular organisms have a single chromosome
What are the different types of sexual reproduction in organisms?
The different types of sexual reproduction in organisms include internal fertilization, external fertilization, and self-fertilization.
What do Organisms make more make more of their own by?
reproducing
What would happen if organisms stopped reproducing?
it becomes extinct
