Answer:
The things that happen during meiosis I are:
- <em>Sister chromatids are condensed.</em>
- <em>Homologs come together.</em>
- <em>Homologs separates from each other.</em>
Explanation:
Meiosis is a process of cell division whose objective is to obtain gametes -cells related to reproduction- that possess half of the chromosome charge (haploids). Meiosis consists of two phases, named I and II.
A summary of the events that occur during meiosis I would be
- Prophase I
Homologous chromosomes pair up and form synapses - which can only happen in this process - forming bivalents, structures made up of two chromosomes and four chromatids. The formation of chiasms -the synaptonemic complex- allows the crossing over or recombination between sister chromatids.
- Metaphase I
Alignment of bivalents on the equatorial plate, with highly condensed chromosomes.
- Anaphase I
Each chromosome, formed by two chromatids, separates and moves to each pole of the cell, a process that implies the disappearance of the chiasms.
- Telophase I
There are two haploid daughter cells, not identical due to recombination, with chromosomes formed by two chromatids.
Mor i think but i could be wrong i suggest looking for more answer before you use mine.
<span />
Answer:
retroviruses
Explanation:
Retrovirus have an enzyme known as reverse transcriptase which allows them to synthesize DNA from RNA going against the central dogma of life which is the synthesis of RNA from DNA. This phenomenon is called teminism.
Answer:
The answer is: Carbon dioxide and water released by cellular respiration are used in photosynthesis.
Explanation: