Answer: 20 minutes
Explanation: Binary fission is a very quick way to reproduce. Some bacteria are able to divide themselves up every 20 minutes. A billion bacteria can be produced in this way from one bacterium in just ten hours given the right conditions.
For a fish to be buoyant, or float, it must displace less water or the same amount of water as its own body mass. ... Many fish use swim bladders to help them with quick depth changes. These bladders fill with air to help fish rise or release air so fish can sink, often in conjunction with forward movement.
A recent study of a model organism found that a specific HMG protein localized mainly to the ends of chromosomes. Given this result, the site of localization for this HMG protein would correspond to regions in humans that Contain heterochromatin similar to that of centromeres.
Telomeres are regions at chromosomal ends that are time and again truncated with every round of the cellular department. Centromeresjoin sister chromatids and are required for correct chromosome division for the duration of mitosis.
Notwithstanding their different chromosomal locations, each telomere and centromere are composed of heterochromatin, a tightly condensed complex of DNA wrapped around histones.
Due to its structurally restrictive form, heterochromatin is transcriptionally inactive, which means that proteins liable for regulating gene expression can't get entry into the tightly packed DNA. As an end result, hetechromatic regions are often gene-bad and incorporate repetitive DNA.
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The correct answer is mitochondria.
The endosymbiotic theory illustrates that how a huge host cell and engulfed bacteria could easily become reliant on each other for existence, leading to an everlasting association. Over millions of years of development, chloroplasts and mitochondria have turned more specialized and at present, they cannot thrive outside of the cell.