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Archy [21]
3 years ago
6

Gene expression in eukaryotes can be regulated at various levels. Certain mutations in flies may cause them to develop an extra

set of legs or wings.
A. Small Interfering RNA B. Operons C. Hox Genes, which determine the formation and arrangement of body parts in multicellular organisms, control gene expression by regulation of A. Pre mRNA Splicing B. mRNA Degradation C. DNA description.
NextReset
Biology
2 answers:
choli [55]3 years ago
4 0

The right answers are: C. Hox Genes and C. DNA description (it's better to say transcription).

Hox genes are among the most extensively studied genes in evolutionary biology. Hox genes are a special category of homeotic genes. The homeotic genes have a DNA sequence described as homeotic or homeobox. Moreover their name, "Hox", comes from the contraction of "homeobox".

The homeobox will encode a homeodomain in translated proteins. These proteins are transcription factors (type of genetic regulatory protein) that, thanks to their homeodomain with a particular conformation, allows them to bind strongly to the DNA and allows cascade activation of other genes.

vekshin13 years ago
3 0
Hox genes are also called Homeotic genes.  In which they act as dictators on specific areas of an organism's body on when or where it should be developed. When these genes are overactivated or inactivated it may cause genetic disorders.
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2 years ago
Some animals shiver as a natural, involuntary response to their environment. Shivering generates heat. This is an example of whi
anyanavicka [17]

Answer: The answer is C!!! :D maintaining homeostasis by regulating the body's temp!

Explanation:

Shivering as a natural, involuntary response to generate heat is an example of  maintaining homeostasis by regulating body temperature.

Homeostasis refers to the maintenance of a relatively constant body environment. The normal range of operation of the body system is known as the setpoint.

When the setpoint temperature for some animals is breached, a negative feedback mechanism is used to return it to the setpoint. Shivering to generate heat is a response to a cold environment when the body's temperature is about to drop below the setpoint.

The oppositeis sweating. Sweating causes cooling and comes in response to when the setpoint temperature is exceeded.

Hopes this helps happy early Christmas!!!! :D

8 0
2 years ago
Read 2 more answers
Help look at the picture​
Inessa05 [86]

The Steady State Theory state that the density of the universe was remaining constant.

<h3>Steady State Theory:</h3>

In cosmology, a steady-state theory is a perspective that holds that the universe is constantly expanding while maintaining a constant average density. According to this theory, the matter is continuously created to form new stars and galaxies at the same rate that older ones fade away due to their expanding distance and accelerating recession. The average density and configuration of galaxies are the same as any location in a steady-state universe, which has no beginning or end in time.

British scientists Sir Hermann Bondi, Thomas Gold, and Sir Fred Hoyle first proposed the hypothesis in 1948. Hoyle expanded on it in order to address issues that had come up in relation to the alternative big-bang theory. According to the hypothesis, in order to maintain a constant average density of matter across time, the new matter must constantly be created, primarily as hydrogen. With nearly five times as much dark matter, the amount needed is small and not immediately observable: one solar mass of baryons per cubic megaparsec every year, or one hydrogen atom per cubic meter every billion years.

Learn more about steady-state here:

brainly.com/question/4956578

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1 year ago
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What is the main advantage to using satellites to measure climate change?

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answer A...Satellites in a low earth orbit can directly monitor the climate from their position within or just above the atmosphere, and can provide near-global coverage as they scan over different swathes of ground with each orbit.

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3 years ago
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