The actively dividing cells, or meristems, control plant growth. Primary (apical) meristems, the dividing tissue at the tips of the roots, grow longer roots, and secondary meristems, the dividing tissue seen in the cross-sections, grow thicker roots.
The organism can produce 12 genetically different gametes.
<h3><u>Explanation:</u></h3>
The gametes are the unit of sexual reproduction which are produced by an organism from their germ mother cell by means of meiosis. This gametes do carry half the amount of total chromosomes that is present inside each cell of that organism. This process let's the genetic combinations of chromosomes to get more variations among offsprings. But this isn't the only source of variation among the offsprings.
Each and every germ mother cell that's undergoing the meiotic division undergoes a process called crossing over and chaismata formation which gives the genetic mixing among the different alleles of same character among the organism.
Thus, statistically, if the organism has n pairs of chromosomes, then the organism will be able to produce 2n number of genetically different gametes which helps in finding out the probability of genotype of the offsprings.
So if the organism has 6 pairs of chromosomes, then the organism will be able to produce 12 genetically different gametes.
Answer:
I'm pretty sure the answer is Parasitism
Explanation:
Because the definition of parasitism is living as a parasite on or in another organism and in this case the Aphids are living on the underside of the leaves. So i would go with Parasitism. If im wrong please forgive me :)
Meiosis I progresses through the following stages: prophase, metaphase, anaphase, and telophase.
Meiosis is a type of cell division that results in the production of four gamete cells and a 50% reduction in the number of chromosomes in the parent cell. To develop egg and sperm cells for sexual reproduction, this process is necessary. In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm). Body (or somatic) cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent).
In meiosis I following are the stages:
- During the interphase, two complete sets of chromosomes that are identical to one another are produced from the cell's DNA.
- Under a microscope, the replicated chromosomes condense into X-shaped structures during prophase I.
- Chromosome pairs align themselves side by side along the cell's equator during metaphase I.
- After that, during anaphase I, the meiotic spindle separates the pair of chromosomes, pulling one chromosome to one pole of the cell and the other chromosome to the other.
- The chromosomes finish moving to the cell's opposite poles during telophase I and cytokinesis.
To know more about meiosis refer to: brainly.com/question/13050419
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