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Marina86 [1]
3 years ago
6

What molecular conformation (structure) of homologous chromosomes facilitates crossing over

Biology
1 answer:
goldfiish [28.3K]3 years ago
6 0
<span>Meiosis is a specialized type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to them.This process occurs in all sexually reproducing single-celled and multicellular eukaryotes, including animals, plants, and fungi. Errors in meiosis resulting in aneuploidy are the leading known cause of miscarriage and the most frequent genetic cause of developmental disabilitiesdiploid two copies of each type of chromosome (2N) zygote cell produced by fusion of a male gamete and female gamete (sperm and egg cells) haploid individual with one copy of each chromosome. also what the gametes are like when a diploid nucleus undergoes meiosis. (N) genome complete set of genetic information in the haploid set of chromosomes homologous chromosomes chromosomes that have the same arrangement of genetic loci, identical in visible structure and pair during meiosis, each member is called a homolog.</span>
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Question is incomplete i have added full question at the end of this answer because im not able to add it in ask for detail section.

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1. Contaminate (Because NaOH is a base while H2SO4 is an acid. If student mix both this will result in chemical reaction.)

2. Contaminate (Because returning regents  are used already id used regents put back in the bottle it will contaminate the fresh reagents.)

3. Contaminate (Using same spatula without sanitation results in mixing of one reagent into other regents which results in failure of experiments.)

4. Does Not Contaminate (It does not have any effect on the reagent because solid reagents are weighted that can be cleaned off when poured into reaction flask.)

5. Does Not Contaminate (Because washing flask after each experiment will wash off the left reagents present in flask.)

6. Contaminate (This will result in contamination because potassium iodide (KI) solution will be mixed with waste)

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