If your observations had not been restricted to the area of the root tip that is actively dividing, how would your results have been different?Cells are in interphase 90% of the time, and, since most of the creation of plant cells occurs in the root tips, you would witness mostly interphase. 2.Based on the data in Table 3.1, what can you infer about the relative length of time an onion root tip cell spends in each stage of cell division?Most of a cells life cycle is spent in interphase. Metaphase is the longest stage of mitosis, and anaphase is the shortest.1.List three major differences between the events of mitosis and meiosis.Meiosis has four nuclear divisions, whereas, mitosis only has one; meiosis creates four haploid cells, whereas mitosis creates two diploid cells; and meiosis is the only one taking part in crossing over.2.Compare mitosis and meiosis with respect to each of the following in Table 3.2:Table 3.2Mitosis MeiosisChromosome Number of Parent Cells2n2nNumber of DNA Replications11Number of Divisions12Number of Daughter Cells Produced24Chromosome Number of Daughter CellsDiploid (2n)Haploid (n)Purpose/FunctionRepair and GrowthGamete and Spore
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Answer:
Lipid
Explanation:
Lipids are composed of a glycerol molecule bonded to long hydrocarbon chain(s) (can be single or multiple) and, depending on the lipid, to other molecules—such as a phosphate group (phospholipids). ... Fats Fats consists of glycerol and 3 fatty acids.
Answer:
obligate intracellular organisms, such as chlamydias, rickettsias, and viruses
Explanation:
<em>Obligate intracellular organisms are those living organisms that cannot reproduce outside their host cells. They require intracellular resources of the host in order to live normally and reproduce.</em>
<em>As a result, these type of organism cannot be cultured using ordinary culture media in the laboratory. They will require special intracellular-like resources in order for them to be successfully cultured in the laboratory.</em>
The potential concerns with genetic engineering can be some ethical concerns, decrease genetic diversity, and not understanding the full effects of altering DNA. The correct options are 1, 3, and 4.
<h3>What is genetic engineering?</h3>
Genetic engineering (also known as genetic modification) is a process that uses laboratory-based technologies to alter an organism's DNA makeup.
This could entail changing a single base pair (A-T or C-G), deleting a region of DNA, or inserting a new segment of DNA.
The potential concerns with genetic engineering can be some ethical concerns, decrease genetic diversity, and not understanding the full effects of altering DNA.
Thus, the correct options are 1, 3, and 4.
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DNA replication needs to occur because existing cells divide to produce new cells. the DNA needs to be copied before cell division so that each new cell receives a full set of instructions
