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quester [9]
4 years ago
10

Which mechanism of genetic variation results from the exchange of gene segments between non-sister chromatids?

Biology
2 answers:
valentinak56 [21]4 years ago
5 0
Crossing over is the <span>mechanism of genetic variation results from the exchange of gene segments between non-sister chromatids.</span>
grandymaker [24]4 years ago
5 0

Answer:its A

Explanation:

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The speed of light in water is 2.25 x 108 m/s. What is true about the index of refraction of water?
djverab [1.8K]
Light speed in water is 2.25 times 10^5 m/s so the index of refraction is higher than the index of refraction of light in a vacuum which is 1.0. (speed in vacuum for light is 300,000 km/s)

Index of refraction of light in water is 3.0 time 10^5 m/s divided by 2.25 times 10^5 m/s = 1.33.

Hope this is what you wanted.

8 0
3 years ago
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Describe the structure of the cell membrane and explain what materials enter and leave the cell and how each transport method is
Nutka1998 [239]
THE STRUCTURE OF THE CELL MEMBRANE
the cell membrane is a thin layer of a partially permable membrane. That protects the cell's organelles and helps to maintain the shape of the cell.
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since the cell membrane is partially permable, that it only allows some materials to pass through it only nutrients that need to be metabolized or neede by the cell is allowed or permitted to go in the cell either by diffusion or osmosis.
HOW IE ONE METHOD DIFFRENT FROM THE OTHER?
since diffrent materials that go in the cell have different concentrations, sizes, and weights, the method by which they go into the cell will definately be diffrent materials with larger molecules use the osmosis method to go in the cell, while materials with smaller molecules use the diffusion method. I HOPE THIS REALLY HELPED
3 0
3 years ago
The bacteria in some foods are sterilized by placing the food near a source of ionizing radiation does that mean that the food b
Firlakuza [10]
<span>Normally sterilizing food using radiation does not induce radioactivity but sometimes it may change the taste, texture of the food and it may also destroy the nutrients. radiation is used to kill the harmful bacteria and to increase the shelf life. when the radiation is very energetic it alters the food structure but it does not make it radioactive. To become radioactive one has to make a nucleus unstable. ionizing radiation normally cannot do this. FDA has established maximum energy levels for radiation to prevent the treated foods from becoming radioactive. The energy levels of the rays are too low to induce radioactivity in the food. So there is no harm in consuming treated foods.</span>
4 0
3 years ago
Metabolites are small molecules that:
Pavlova-9 [17]

Answer:

C) generally consist of 1,000 different substances

Explanation:

Metabolites are compounds, usually organic, that participate in the chemical reactions that take place at the cellular level. The set of these biochemical reactions, together with the intracellular physical-chemical processes, constitutes the cellular metabolism, the molecular basis of life. The metabolism includes the degradation of molecules for obtaining energy (catabolism) and the synthesis of molecules necessary for growth, reproduction and repair (anabolism).

The succession of metabolic reactions that transform a given initial substance into another is known as a metabolic pathway. The starting substance is known as a substrate or raw material. The final substance is usually known as the final product or metabolite (a metabolic pathway can generate several final products) and the intermediate substances as intermediate metabolites. An intermediate or final metabolite in one metabolic pathway may be the substrate in another, which makes the vast majority of metabolic pathways interconnected.

Metabolites can be classified into two large groups, primary and secondary. Primary metabolites are defined as those that are directly involved in the normal growth, development and reproduction of an organism with an important physiological function. On the contrary, secondary metabolites are not directly involved in these processes. The absence of a primary metabolite usually leads to immediate or short-term death while the absence of a secondary metabolite does not.

<em>According to the different types and diverse functions that fulfill there are an immense amount of metabolites</em>

3 0
3 years ago
a population of grey foxes live in a forest ecosystem. these foxes pret mostly in large population of mice . if a fatal disease
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The fox population would most likely decrease over time. The fox's population would go way down if they ate dead mouse consumed by the infection and caught the infection themselves.

I hope this helped you!

Brainliest answer is always appreciated!<span />
5 0
3 years ago
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