What type of cells does a mutation affect that will have no effect on a possible offspring?

Certain environmental changes can denature proteins. Denatured proteins lose their three dimensional structure and when the prot

Salsk061 [2.6K]

Answer:

Catalase can be described as an enzyme that catalyses the conversion of hydrogen peroxide into hydrogen and oxygen.

Other than pH, other factors that might affect the catalase specificity are :

1. Temperature:

Very low or very high temperatures will cause the enzyme to get denatured, The active site of the catalases will not be able to fit the hydrogen peroxide molecules.

2. Presence of an inhibitor:

An inhibitor might get fit into the active site of the catalase hence blocking the site for hydrogen peroxide to fit into the active site of catalase.

4 0

3 years ago

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What is the basis of Gram staining results?

ladessa [460]

Answer:

The structure of each cell type's wall.

Explanation:

The basis of Gram stain is differentiating cells in two different categories depending on the composition of the cell wall. Gram positives fixate a KI and Crystal Violeta complex in their peptidoglycan wall, but otherwise, gram negatives don't have a thick layer of this, and therefore, when the wash process happens it takes away all the pigments leaving the cells blank for the last pigment (pink).

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3 years ago

According to the phs, the definition of the term "investigato

leonid [27]

PHS defines an investigator as an individual, regardless of tittle or position, who is responsible for the design, conduct or reporting of research funded by the PHS or proposed for such funding. This includes key personnel identified in the grant application, progress report or other report submitted to the funding agency by the Institution.

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3 years ago

1. Name three types of evidence used to support the theory of evolution

Llana [10]

Answer:

1) Fossil evidence Support

2)Genetic evidence supports evolution.

Biological evidence supports evolution;

Explanations;

1)Fossil evidence Support evidence;

This gives the geographic information about many fossils, it gives evidence that two species with a common ancestor can have their development differently and in

different locations. The common ancestor term is crucial especially in

theory of natural selection . In this evidence there is prove that common ancestor is shared through comparison between modern plants and modern algae to fossil algae by scientist.

Examples are bones, exoskeletons, stone imprints of microbes as well as animals.

2)Genetic evidence supports evolution.

This provides the understanding of how traits are passed from one generation to another under the study of DNA, DNA which contains the information needed by all organisms need to grow and to maintain themselves.geneticmaterial are passed to offspring by parent during reproduction. There are code which is made up of different chemical sub unit known as base. posses by DNA that helps to to function properly.

represented by letter A, T, C, and G.

3)Biological evidence supports evolution;

In this evidence, details about how evolution can be observed within the physical structures of adult organisms. is provided. It is evidence that involves of structural evidence such as vestigial structure which means an organisms with organs and similar structures with different functions.

For Example, considering the bodies of whales which is an organisms,there are small leg bones that are vestigial.

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3 years ago

What organisms can get up to 10 centermeters in size

Svetach [21]

<h2><u>Answer:</u></h2>

A Single-Celled Organism

<h2><u>Explanation:</u></h2><h3><u></u></h3>

The giants of the deep are so-called xenophyophores, sponge-like animals that—like amoebas—are made of just one cell. They were found during a July research expedition run by the Scripps Institution of Oceanography in La Jolla, California.

The animals are about four inches (ten centimeters) long—among the largest single-celled organisms known to exist.

The creatures were discovered at depths of 6.6 miles (10.6 kilometers). That breaks a previous record for xenophyophores found in the New Hebrides Trench at 4.7 miles (7.6 kilometers).

Xenophyophores represent, <u>"one of the few groups of organisms found exclusively in the deep sea,"</u> said Lisa Levin, a Scripps oceanographer who studied the expedition's data.

<u>"If any creatures should be able to live at the ocean's greatest depth, then xenophyophores certainly should be among them."</u>

The Mariana xenophyophores were seen in footage from Dropcams, free-falling devices equipped with lights and digital video that were developed by the National Geographic Society. (The Society owns National Geographic News.)

Protected by thick walls of pressure-resistant glass, the Dropcams were baited to attract whatever marine life might be lurking in the deep. Expedition scientists also saw, for instance, the deepest-swimming jellyfish to date. (Watch a video of the expedition.)

<u>"The deep sea is the largest biome on Earth and holds much of the diversity on the planet—[yet it's still] largely undescribed,"</u> Levin said in an email to National Geographic News.

(Also see, <u>"Pictures: Hard-to-See Sea Creatures Revealed."</u>)

According to Jon Copley, a marine biologist at the U.K.'s University of Southampton, <u>"many of the major discoveries in deep-sea biology have come from making direct observations at the seafloor."</u>

<u>"The Dropcam is a great tool for the future, because it can help us see more of what's down there for less cost than using ROVs or submersibles,"</u> he said via email.

For instance, <u>"finding xenophyophores far deeper than before shows how much we still have to learn about our oceans depths and their inhabitants."</u>

Tullis Onsott, an expert in deep-sea microorganisms at Princeton University, also called the xenophyophore discovery, <u>"fantastic."</u>

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3 years ago