One of the key innovations in the evolution of endomembrane system. What eukaryo

Question

One of the key innovations in the evolution of endomembrane system. What eukaryotic organics or as an elaboration of, the endomembrane system? A) plasma membrane B) chloroplasts C) mitochondria D) nuclear envelope E) none of these A triploid cell contains three sets chromosomes. If a cell of a usually diploid species with 42 chromosomes per cell is triploid, this cell would be expected to have which of the following? A) 63 chromosomes in 31 1/2 pairs. B) 63 chromosomes each with three chromatid C) 63 chromosomes in 21 sets of 3 D) 21 chromosome pairs and 21 unique chromosomes The TATA sequence is found only several nucleotides away from the start site of transcribe most probably relates to which the following? A) the ability of this sequence to bind to the start site B) the triplet nature of the codon C) the 3-D shape of a DNA molecule D) the supercoiling of the DNA near the start site E) the number of hydrogen bonds between A and T in DNA Which metabolic pathway is common to both fermentation and cellular respiration molecule? A) synthesis of acetyl CoA from pyruvate B) glycolysis D) the electron transport chain E) the citric acid cycle

Explanation / Answer

ANS 37: Mitochondria in case of animals and chloropasts in plants have evolved from proteobacteria and cyanobacteria respectively through endosymbiosis.

ANS 38: (c) option is correct. If normal diploid cell carries 42 chromosomes, the triploid cell having 63 chromosomes is expected to have them in 3 sets.

ANS 39: (A) option is right. because RNA polymerase bind only to a start site which is equipped with the TATA box.

ANS 40: (B) option is correct.

glycolysis is the only catabolic pathway shared by Fermentation and normal cellular respiration.

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.