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Anvisha [2.4K]
3 years ago
12

What is rna , in biology

Biology
2 answers:
Arisa [49]3 years ago
5 0
Ribonucleic acid is what RNA stands for
serious [3.7K]3 years ago
4 0

Answer:

Ribonucleic Acid!

Explanation:

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A--What do you get if you add the number of maternal chromosomes in a somatic cell to the number of autosomes in a sex cell, the
madam [21]

Answer:

44

Explanation:

A somatic cell is diploid - it has 46 chromosomes. Half of these are from the mother, so there are 23 maternal chromosomes

A sex cell (gamete) is haploid - it has 23 chromosomes. There are (usually) two sex chromosomes in a diploid genome, either XX or XY, so there is one 1 in a haploid cell, giving a total of 22 autosomes

Barr bodies are inactive X chromosomes in a female somatic cell. This occurs to control dosage compensation (otherwise all the genes on the X in females would be expressed twice as much as they are in males). In a healthy female, there is normally one Barr body

A person with Kleinfelter's syndrome has two X chromosomes and one Y (XXY). They are biologically male, but have two X chromosomes. Therefore, one of these becomes a Barr body, as in females.

23 + 22 - 1 = 44

7 0
4 years ago
Name at least TWO types of organisms that do photosynthesis
erma4kov [3.2K]
Plants and algae, if you need more bacteria and sometimes animals photosynthesize.
5 0
3 years ago
Read 2 more answers
Geologist discovered fossils of identical spider mites from the same time period but on opposite sides of the ocean from each ot
stich3 [128]

Answer:

The correct option is B, THE LOCATION OF THE FOSSILS WERE ONCE MUCH CLOSER TO EACH OTHER.

Explanation:

The discovery of identical species of organisms at different location on the earth continent has been explained by the theory of plate tectonic. The theory of plate tectonic states that the outer layer of the earth is divide into several plates, which are capable of moving around the earth in relative positions to one another.

Using the theory of plate tectonic, the geologists in this question will conclude that the fossils discovered at different sides of the ocean were closer together before, but were moved away from each other as a result of the process of plate tectonic.

7 0
4 years ago
PLEASE HELP WILL MARK BRAINLEST!!!
nevsk [136]
I’m pretty sure it’s C if not A
5 0
3 years ago
¿Que impacto tiene los diferentes tipos de centrales eléctricas en nuestro medio ambiente?​
Fofino [41]

Answer:

Sin los correspondientes controles y marcos regulatorios, las centrales eléctricas pueden tener efectos adversos sobre el medio ambiente y contaminar los ecosistemas naturales, representando un serio riesgo para la salud humana

Explanation:

Las centrales eléctricas representan un riesgo latente para el medio ambiente, con lo cual ellas deben estar bajo un estricto marco regulatorio y control por parte de las instituciones gubernamentales especializadas para tal fin. Por ejemplo, las centrales hidroeléctricas generan la inundación permanente de grandes áreas (incluso miles de hectáreas) con el objetivo de aumentar la capacidad de generación de energía eléctrica. Por otra parte, se cree que aproximadamente el 50% de la polución industrial se debe a la acción de centrales eléctricas convencionales, las cuales utilizan la combustión del carbón, el petróleo o el gas natural con el objetivo de generar energía eléctrica. Este tipo de centrales eléctricas producen dióxido de carbono (CO2), el principal gas de efecto invernadero y considerablemente deterioran la calidad del aire que respiramos mediante la liberación de partículas contaminantes, presentando efectos adversos tanto para la salud humana como para el medio ambiente. Finalmente, la instalación de centrales eléctricas a base de la energía nuclear no generan gases causantes del efecto invernadero, pero pueden representar un serio riesgo debido a la posibilidad de liberación de materiales radiactivos durante accidentes nucleares, los cuales son capaces de contaminar permanentemente el medio ambiente. En este punto, es importante aclarar que los riesgos de accidentes en centrales nucleares se ha reducido notablemente en las últimas décadas y, por lo tanto, este tipo de centrales eléctricas se consideran relativamente seguras.

5 0
3 years ago
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