The correct answer is
DNA polymerase is the enzyme that catalyzes the addition of a nucleotide onto the 3' end of a growing DNA strand. DNA polymerase adds nucleotides one by one to the 3’ end of the growing DNA chain, incorporating only those that are complementary to the “old” DNA strain.<span>The addition of nucleotides requires energy which comes from the nucleotides themselves (phosphates).</span>
<h3><u>Answer;</u></h3>
Germline mutation
<h3><u>Explanation;</u></h3>
- Mutations are sudden, random changes that occur spontaneously in the genetic make up of an organism. <em><u>Mutation are caused by various factors which includes errors in meiosis, and other factors such as chemical mutagens.</u></em>
- <em><u>Germline mutations are types of mutations that occurs in the germline cells, cells that give rise to gametes, sperm and ovum.</u></em>
- These types of mutations may be passed from the parents to the offspring, when a mutated sperm cells or ovum undergoes fertilization to form an ovum.
Answer:
D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.
Explanation:
The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.
The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.
In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.
Over the years, there have been numerous methods and products which were developed to do gene regulation. Be it through structural or chemical. One example is through prompting protein production of cells which help to control and limit the spread of cancer cells in health treatment.
Usually in sedimentary rocks such as limestone and shale.
