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xxTIMURxx [149]
3 years ago
5

What gives the gem amethyst is purplish color?

Biology
1 answer:
velikii [3]3 years ago
4 0
Gem amethyst turns purple because of the irradiation with iron. Answer is Iron.
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A certain eukaryotic organism has multiple, distinct genes with highly similar sequences that are expressed at different times i
vlabodo [156]

These genes could have arisen by gene duplication.

<h3>What is gene duplication?</h3>

Gene duplication is the process of copying a section of DNA that codes for a gene. A retro transposition event or a recombination mistake are both potential causes of gene duplication. As a result, the duplicate gene coding may experience a significant number of modifications throughout time. This might prevent the gene from functioning or, in other situations, give the creature a benefit.

Gene duplication is a phenomenon that can happen through a variety of ways:

  • Ectopic Recombination: Uneven crossing-over between misaligned homologous chromosomes during meiosis might result in duplications. A duplication at the exchange site and a reciprocal deletion are the results of this recombination.
  • Replication Slippage: Short genomic sequences can be duplicated as a result of the replication error known as replication slippage. DNA polymerase starts copying the DNA during replication, but eventually the polymerase separates from the DNA, causing replication to stall. The replicating strand is incorrectly aligned when the polymerase reattaches to the DNA strand, which accidentally results in several copies of the same portion.
  • Aneuploidy: When a single chromosome's nondisjunction causes an abnormally high number of chromosomes, this condition is known as aneuploidy. Aneuploidy is frequently damaging and frequently causes spontaneous miscarriages in mammals. Some aneuploid people can survive. For instance, human trisomy 21 causes Down syndrome but is not lethal.

Learn more about gene duplication here:

brainly.com/question/14014915

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3 0
2 years ago
Pleaseeee help meeeee
erastova [34]

Hello love! The answer for your question is D: grass - producer because all energy starts from the producers so the consumers can get energy. Producers are the creators of energy

Hope this helps!!!

7 0
3 years ago
Read 2 more answers
2. According to the data in Model 1, how many males are 181 cm or above in height?​
tatiyna
Is there a picture ?
4 0
2 years ago
Sometimes scientists study the way fossils and living organisms are distributed or spread out on the earth what is this area of
cricket20 [7]

It's called Biogeography which is the study of fossils, plants, species.

*Hope this helps:) Mark me the Brainliest:)!!!

3 0
3 years ago
What months can you not eat oursters
ValentinkaMS [17]

Answer:

May, June, July, and August.

Explanation:

*oysters?

The months that do not have an r you can eat oysters. The months that have an r, you cannot eat oysters, which are April, January, February, March, September, October, November, and December.

6 0
2 years ago
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