In haploid genotype i+, oc, z+, y+, a+ : operator (Oc) is constitutive it means lac operon express constitutively even when repressor is present and whether IPTG is absent or present.
Z+ produce functional β-gaalactosidase enzyme without Isopropyl-β-D-thiogalactopyranoside (IPTG)
Z+ (-IPTG) = +
Y+= produce functional permease enzyme without Isopropyl-β-D-thiogalactopyranoside (IPTG)
Y+ (-IPTG)= +
A+= produce functional β-galactoside transacetylase enzyme without Isopropyl-β-D-thiogalactopyranoside (IPTG)
A+ (-IPTG)= +
Z+ produce functional β-gaalactosidase enzyme with Isopropyl-β-D-thiogalactopyranoside (IPTG)
Z+ (+IPTG)= +
Y+= produce functional permease enzyme with Isopropyl-β-D-thiogalactopyranoside (IPTG)
Y+ (+IPTG)= +
A+= produce functional β-galactoside transacetylase enzyme with Isopropyl-β-D-thiogalactopyranoside (IPTG)
A+ (+IPTG)= +
. The mutations wad to non-functional anymes Y Ares active The following gene symbols for acoperen...
Which of the following mutations is most likely to result in a non-functional protein? a) a single-nucleotide substitution in a promoter b) an insertion in an intron c) a frameshift mutation d) a missense mutation You have conducted an Ames test on a given compound to determine whether it is a mutagen. Which of the following would be classified as a positive result on the Ames test? a) originally His+ strain grows on minimal medium with histidine. b) originally His+...
I really need help with these questions!! 2. Bernard Davis tested the "cross-feeding" interpretation of some data that showed the phenotype of one microbe as capable of being changed by another microbe. His contribution can be summarized as: A) using one strain of microbes as food for another, and then evaluating the impact upon microbial phenotype. B) combining microbes with complementing auxotrophs in a single tube and then analyzing the cells of gene exchange. C) placing a barrier between bacterial...
n 13 You have found a mutant that has a G-protein that can only bind GDP and cannot bind GTP. Which of the following might you expect in the mutant cells? red ed out of ag question Select one: a. The secondary messenger would be made constantly. b. The cells would have more energy availability due to higher GTP binding. c. The secondary messenger would not be made. O d. The primary messenger would not be able to bind to...
Immunology Question May you check my answers for 2a and 2b and see if: the information is being accurately presented, there is no unneeded information, and most importantly it is answering the question? I added more information to strengthen my answer so hopefully, it is better this time around. Thank you in advance! 2) Candida albicans is an opportunistic fungal pathogen in humans, and can cause a few irritating, but non- life threatening, infections in healthy individuals. However, in immunocompromised...
1. Which of the following are the sites within the human body where carbon dioxide and oxygen are exchanged? A. Alveoli B. Arteries C. Synapses D. Venules 2. Which of the following describes the most important reason for repeating an experimental investigation? A. To verify the validity of the original findings B. To expand upon the original investigation C. To manipulate the independent variable D. To attempt to disprove the hypothesis 3. Lithium has an atomic number of 3 and...