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natta225 [31]
3 years ago
9

Why are the daughter cells resulting from mitosis genitically identical

Biology
2 answers:
Amanda [17]3 years ago
6 0

Answer:

The cells are identical because the DNA is copied during the S phase before cell division and then each resulting cell gets a matching copy of the chromosomes.

<em>hope it helps :)</em>

Alenkasestr [34]3 years ago
5 0
Briefly explain why the daughter cells resulting from mitosis are genetically identical to each other and to the original cell. ... The cells are identical because the DNA is copied during the S phase before cell division and then each resulting cell gets a matching copy of the chromosomes.
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Whiat phases encompasses all of the stages of mitosis but no other events?
enot [183]

Answer:

The mitosis process includes only four phases of the event in mitotic cell division.

Explanation:

  • Mitosis is the biological cell division cycle that produces tow daughter cell with equivalent number of chromosomes.
  • In mitosis the nucleus divides, chromosome separates and moves to the opposite poles and forms two daughter cell at last.
  • There are four phases in the mitosis cell division: prophase, metaphase, anaphase, and telophase repectively in the order.
  • These four phases causes cytokinesis and occur in sequential order.
7 0
3 years ago
How much of the worlds water is saltwater? A. 97.5%. b. 50% C.25% D. 2.5%
oksian1 [2.3K]
About 97.5% of the earth's water is saltwater and about 2.5% is fresh.
8 0
3 years ago
Read 2 more answers
Explain why ions do not move through ion channels by only simple diffusion, whereas water does move through water channels by si
cluponka [151]

Answer:

Electrical gradient.

Explanation:

Ions DO NOT move in Ion channels by simple diffusion because most ion channels can be:

I) selective of ions pass through it.

II) operating on a "open and close" principle. Where it opens or close on its own accord OR does so ONLY when induced by a specific influence like change in voltage of ion channels.

IN ADDITION to the concentration gradient, ELECTRICAL GRADIENTS (change in membrane voltage) affects the movement of ions through ion channels

3 0
3 years ago
an organism that uses that uses hydrogen sulfide as a source of energy is categorized as which of the following ​
Shkiper50 [21]
In biochemistry, chemosynthesis is the biological conversion of one or more carbon-containing molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic compounds (e.g., hydrogen gas, hydrogen sulfide) or methane as a source of energy, rather than sunlight, as in photosynthesis. Chemoautotrophs, organisms that obtain carbon through chemosynthesis, are phylogenetically diverse, but also groups that include conspicuous or biogeochemically-important taxa include the sulfur-oxidizing gamma and epsilon proteobacteria, the Aquificae, the methanogenic archaea and the neutrophilic iron-oxidizing bacteria.

Many microorganisms in dark regions of the oceans use chemosynthesis to produce biomass from single carbon molecules. Two categories can be distinguished. In the rare sites at which hydrogen molecules (H2) are available, the energy available from the reaction between CO2 and H2 (leading to production of methane, CH4) can be large enough to drive the production of biomass. Alternatively, in most oceanic environments, energy for chemosynthesis derives from reactions in which substances such as hydrogen sulfide or ammonia are oxidized. This may occur with or without the presence of oxygen.

Many chemosynthetic microorganisms are consumed by other organisms in the ocean, and symbiotic associations between chemosynthesizers and respiring heterotrophs are quite common. Large populations of animals can be supported by chemosynthetic secondary production at hydrothermal vents, methane clathrates, cold seeps, whale falls, and isolated cave water.

It has been hypothesized that chemosynthesis may support life below the surface of Mars, Jupiter's moon Europa, and other planets.[1] Chemosynthesis may have also been the first type of metabolism that evolved on Earth, leading the way for cellular respiration and photosynthesis to develop later.

That’s probs to much
8 0
3 years ago
Which enzyme seals nicks and joins okazaki fragments? dna polymerase i dna gyrase dna primase dna ligase dna helicase?
mr_godi [17]
This would be DNA ligase.
8 0
3 years ago
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