Answers
Answer:
pp
Explanation:
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Biology questions please help
Most compounds that produce this in aqueous solution are ionicA) AcidB)BaseC) Both
Which of the following is/are true? A. Sympatric speciation is best described as a random event that disrupts the allele frequencies in a population.B. Red headed females in a population will only breed with red headed males. The yellow headed females will only breed with yellow headed males. The red and yellow populations live on separate continents and rarely met in nature. The red and yellow could breed and produce fertile offspring but they normally do not. This would be an example of sympatric speciation. C. Sympatric speciation does not require geographic isolation.D. Red headed females in a population will only breed with red headed males. The yellow headed females will only breed with yellow headed males. This population lives in the same geographic area. The red and yellow individuals could breed and produce fertile offspring but they normally do not. This would be an example of sympatric speciation. E. Sympatric speciation can be due to sexual(mate) selection
4. Choose the best explanation of the difference between evolution and natural selection.O A. Evolution is the idea that species change over time, and natural selection is the idea that nature chaO B. Natural selection is the idea that species change over time, and evolution is the idea that our world cO C. Natural selection is the idea that species change over time, and evolution is the idea that the speciesO D. Evolution is the idea that snecies change nyer time and natural colo
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Answer:
Explanation:
B. Dissolving Sugar
C. Boiling Water
D. Baking A Cake
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Answer:
D. Baking A Cake
Explanation:
Cutting a log is a physical change. Cutting would give rise to a new wood piece .
So.. no new substance is formed so its a physical change.
Dissolving Sugar
A mixture of sugar and water can be separated by using heat.
Heat will separate the water and sugar using a process called Evaporation.
Baking A Cake
When baking your cake it is a chemical change because you can't get your ingredients back. We know that it is a chemical change because heat energy is involved.
. Boiling Water
Boiling water is a physical change.
it can be changed back to its original form by freezing.
the Sun rises earlier and sets later than during other seasons.
B.
the Sun appears lower in the sky than during other seasons.
C.
there are fewer hours of visible sunlight each day than during other seasons.
D.
the Sun rises in the Southeast and sets in the Southwest.
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Answer:
A
Explanation: In the summertime in the northern hemisphere, the Earth is farther from the Sun because of the ellipse in its orbit, but the angle of the Earth's tilt points the hemisphere towards the Sun, making the days longer. The Sun's angle is also higher during the summer months than the winter months.
Answer:
A
Explanation:
Study Island
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Answer:
The same gene encodes both proteins by using different combinations of exons in the pre‑mRNA via alternative splicing.
Explanation:
According to the question, two different proteins (one with 56 amino acids and the other with 82 amino acids) are found to be encoded by the same gene. This is possible due to a process called ALTERNATIVE SPLICING.
Alternative splicing is a phenomenon whereby the protein-coding region of a gene called EXON is manipulated in such a way that variety of proteins emanate from a single gene. This manipulation includes the removal or inclusion of EXONS in the gene, so as to give rise to different combinations of mRNA, hence, different proteins will be translated from the different mRNA from the same gene.
In this case, exons were removed from one mRNA to have lesser amino acids (56) in the translated protein while exons were included in the other mRNA to have more amino acids (82).
Final answer:
The same gene can encode two different proteins via mechanisms such as the use of different combinations of exons in the pre-mRNA through alternative splicing, and the gene using multiple 3′ cleavage sites in the pre‑mRNA.
Explanation:
The subject of this question is Alternative Splicing, a processing event in biology that allows a single gene to code for multiple proteins. This process is possible due to the gene's complex structure comprised of multiple exons and introns. Two possible explanations for the same gene encoding two different proteins are through the use of different combinations of exons in the pre‑mRNA via alternative splicing, and the gene using multiple 3′ cleavage sites in the pre‑mRNA. The first mechanism occurs when the gene mix and matches exons during RNA splicing, leading to different mature mRNA molecules which code for different proteins. The second mechanism suggests that the same gene encodes different pre-mRNAs, and the different 3' cleavage sites determine the size of the encoded protein.
Learn more about Alternative Splicing here:
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When an atom has fewer neutrons than protons and more electrons than protons, such an atom is said to be an anion. Hence, it is negative ion.
Depending on the number of proton and electron, there are 3 types of atoms:
- Neutral atoms in which the proton and electron numbers are balanced
- Cation in which the proton number is more than the electron number
- Anion in which the electron number is more than the proton number
In this case, the atom has more electrons than protons and, therefore, is an anion. The excessive electron makes such atom to be negatively charge.
Therefore, an atom that has fewer neutrons than protons and more electronsthan protons is a negative ion.
More on charged atoms can be found here: brainly.com/question/9264485
Answer:
Negatively charged ion
Explanation:
Negatively charged ions are called anions and they have more electron than than protons and more protons than nuetrons.
The strand of RNA leaves the nucleus.
A protein is produced.
A strand of RNA is made from a strand of DNA.
Answers
The strand of RNA moves to the ribosome.
✔ 4
The DNA double helix unzips.
✔ 1
The strand of RNA leaves the nucleus.
✔ 3
A protein is produced.
✔ 5
A strand of RNA is made from a strand of DNA.
✔ 2