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elena-s [515]
3 years ago
12

The human genome contains approximately 20,000 protein-coding genes, yet it has the capacity to produce several hundred thousand

gene products. What can account for the vast difference in gene number and product number? The human genome contains approximately 20,000 protein-coding genes, yet it has the capacity to produce several hundred thousand gene products. What can account for the vast difference in gene number and product number? Alternative splicing occurs. There are more introns than exons. There are more exons than introns. Much of the DNA is in the form of trinucleotide repeats, thus allowing multiple start sites for different genes. Every gene can be read in both directions, and each gene can have inversions and translocations.
Biology
1 answer:
Neporo4naja [7]3 years ago
4 0

Answer:

Alternative splicing occurs.

Explanation:

The human genome comprises of a large number of introns or no protein-coding sequence interspersed between the exons or the protein-coding sequence.

After transcription in eukaryotes, an event takes place called splicing which removes all the introns from the mRNA and joins exons and additionally alternative splicing takes place which joins together many exons in many combinations which produce a variety of processed mRNA and thus a variety of proteins.

The process of alternative splicing produces a lot more than proteins from a single gene product.

Thus, alternative splicing is correct.

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7 0
3 years ago
Hot springs in Yellowstone National Park can reach 205 degrees Fahrenheit (96 degrees Celsius), a temperature at which few organ
Verdich [7]

Answer:

Thermophiles have heat-resistant enzymes.

Explanation:

A hypothesis refers to the possible explanation of processes and is based on observation.  

Thermophiles are able to survive the extremes of the temperature found in hot springs of Yellowstone National Park. Their ability to withstand such temperature may be due to the presence of heat resistant enzymes.

Since enzymes are proteins, they are denatured at higher temperatures. It is one of the factors that determine the temperature range that can be tolerated by an organism.  

Hence, the presence of heat resistant enzymes in thermophiles can be one of the possible explanations about their ability to survive under the temperature as high as 205 degrees Fahrenheit.  

3 0
3 years ago
What is the main function of the Krebs Cycle?
vlada-n [284]

Answer:

D to produce energy-carrier molecules

Explanation:

The main function of the Krebs cycle is to produce electron carriers that can be used in the last step of cellular respiration.

6 0
3 years ago
List the steps of reasoning that Darwin gave to explain the process of natural selection
Ivenika [448]

Answer:

variation,inheritance,high rate of populations growth,differential survival and reproduction

please follow me and Mark me brainliest please

8 0
2 years ago
How have humans affected the Chesapeake Bay ecosystem food web?
LiRa [457]

Answer:

Algal blooms caused by pollution and the lack of oysters in the Bay has led to the decline of ocean floor algae, plants, and like sea grass and an overgrowth of bacteria. Jellyfish that were once rare are now common.

Explanation:

Hope thats helpful.

6 0
2 years ago
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