Answer: c. Transition Reaction
Explanation:
During the transition reaction, Acetyl-CoA is formed and connects the first stage of glycolysis with the Krebs Cycle (Citric Acid Cycle). In the presence of oxygen, pyruvate enters the mitochondria and is oxidized to form a compound of 2 carbon, acetate, with energy and CO2 release. During this process, the acetate binds to a coenzyme(coenzyme A (CoA)) - forming the acetyl-coenzyme A.
The 3 steps:
1. pyruvate is oxidized and forms acetate with liberation of CO2;
2. the energy released in the oxidation of pyruvate is stored in the reduction reaction of NAD+ to NADH + H+
3. The acetate molecule combines with coenzyme A to form acetyl-coenzyme A.
The correct answers of this question is options A and C. Types of context clues are direct explanation or variation, and restatement or synonym. Context clues are hints that a writer gives to explain a difficult word. Other types are antonyms, interference and punctuation.
Answer: Chemical weathering decomposes or decays rocks and minerals. An example of this is water and limestone. Organic weathering happens when plant break up rocks. One the rock has been weakened and broken up it is ready for Erosion. This happens when rocks are picked up and move usually by water. Mechanical weathering breaks up rocks, this usually happens when water gets into cracks, freezes and expands the rock
Explanation:
Answer:
(B) ACCGUUCAUGCA
Explanation:
Transcription is the one of the two stage involved in gene expression. It involves the synthesis of a mRNA molecule using a DNA template. The process of transcription is carried out by an enzyme called RNA polymerase which binds to the PROMOTER region of the DNA molecule and begins to synthesize RNA nucleotides based on what it reads on the DNA.
The addition of nucleotide bases on the RNA strand by RNA polymerase enzyme follows the COMPLEMENTARY BASE PAIRING RULE, which states that Adenine always pairs with Thymine while Guanine always pairs with Cytosine in a DNA molecule. In the case of transcription, the Uracil base replaces Thymine in the newly synthesized RNA. Hence, for every Adenine nucleotide read by RNA polymerase, it adds a Uracil nucleotide. The same goes for Thymine-Adenine, Cytosine-Guanine and Guanine-Cytosine i.e. A-U, G-C.
Based on this principle, a DNA template with a sequence: TGGCAAGTACGT will produce an mRNA molecule with sequence: ACCGUUCAUGCA
