Suppose you wish to be outstanding in your field by studying plant cell biology. You discover...

Suppose you wish to be outstanding in your field by studying plant cell biology. You discover a new strain of wild lima bean plants from Costa Rica that is resistant to being killed by a hydrophobic pesticide. Which one of the following states the most reasonable hypothesis that could explain the nature of the pesticide resistance?

A) Many chloroplast proteins are encoded in the plant nuclear genome. A nuclear gene encoding an enzyme involved in the dark reactions might confer resistance by degrading the pesticide.

B) In the resistant strain, the plant cell wall might contain a novel phospholipid that binds to the pesticide and prevents its entry into the plant cells.

C) The endoplasmic reticulum in the leaf cells of the resistant strain might contain a mutant version of a cytochrome P450 enzyme that helps to remove the pesticide from the membrane.

D) The resistant strain has mutations in actin that inhibit the development of pluripotent cells in the stem, re. This results in active transport of the pesticide via LDL particles interacting with coated pits on the mitochondrial thylakoid membranes.

E) None of the above

Expert Solution

Answer:

Suppose you wish to be outstanding in your field by studying plant cell biology. You discover a new strain of wild lima bean plants from Costa Rica that is resistant to being killed by a hydrophobic pesticide. Which one of the following states the most reasonable hypothesis that could explain the nature of the pesticide resistance?

A) Many chloroplast proteins are encoded in the plant nuclear genome. A nuclear gene encoding an enzyme involved in the dark reactions might confer resistance by degrading the pesticide.

B) In the resistant strain, the plant cell wall might contain a novel phospholipid that binds to the pesticide and prevents its entry into the plant cells.

C) The endoplasmic reticulum in the leaf cells of the resistant strain might contain a mutant version of a cytochrome P450 enzyme that helps to remove the pesticide from the membrane.

D) The resistant strain has mutations in actin that inhibit the development of pluripotent cells in the stem, re. This results in active transport of the pesticide via LDL particles interacting with coated pits on the mitochondrial thylakoid membranes.

E) None of the above

gladiator answered 1 year ago

Suppose you are studying a population of an animal or plant. You wonder if this population...

Suppose you are studying a population of an animal or plant. You wonder if this population is genetically distinct from neighboring populations (i.e., an ecotype). Briefly state several ways by which you could determine if your population is indeed a locally adapted ecotype. Then describe in some detail how this ecotype could have evolved to be distinct from neighboring populations. Include the concepts of mutation, natural selection, gene flow (migration), genetic drift and inbreeding.

Suppose you are a researcher studying the study habits of college students. The parameter you wish...

Suppose you are a researcher studying the study habits of college students. The parameter you wish to measure is the number of minutes students study each week. From previous research you know that this parameter is distributed Normally and has a standard deviation of 50 minutes. (Please only answer one part at a time to give other students a chance to answer as well! Start with the first one!) 1. If you wish to construct a 90% confidence interval that...

You discover an organism with a new mutation in the gene that you are studying that...

You discover an organism with a new mutation in the gene that you are studying that changes the codon in the mRNA from a GCC (Ala) to a GAC (Asp) causing a mutant phenotype. You feed this organism a mutagen and find that in one of its progeny the phenotype has now reverted back to wild-type. When you look at your gene in this offspring you find the mutation GAC (Asp) has been changed back to the original GCC (Ala)....

Suppose you discover a novel process in a little-studied cell type in which application of a...

Suppose you discover a novel process in a little-studied cell type in which application of a chemical causes an unknown organelle to undergo energy-dependent movement from near the MTOC to the plasma membrane. To probe the cytoskeletal elements required for this movement you add an actin depolymerizing drug latrunculin A. This drug does not affect the initial movement of the organelle away from the MTOC, however the organelle stops before reaching the plasma membrane. You next try the microtubule depolymerizing...

25.You are studying a new type of cancer and you discover that there is a mutation...

25.You are studying a new type of cancer and you discover that there is a mutation in a gene that encodes a histone acetylase. You hypothesize that the mechanism by which this mutation causes cancer is: A – Introducing random mutations B – By altering the expression of a gene involved in the control a cell proliferation C – Mutating DNA repair genes D – By introducing a mutation in a gene involved in the control a cell proliferation 26.Often...

In studying the brain of this monkey you discover that the brain is almost 10% larger...

In studying the brain of this monkey you discover that the brain is almost 10% larger than you would expect for primate of this size. 6. What parts of the brain do you most expect to be enlarged and why? a) What are the disadvantages of this increase in brain size? b) If the increase is primarily in the prefrontal cortex and V1 area, what advantage would it provide? c) for increase in the ventral premotor area, what advantage would...

You work for the Gotham Times and you wish discover if Bruce Wayne is really Batman....

You work for the Gotham Times and you wish discover if Bruce Wayne is really Batman. We have exfiltrated some files and you will use Python and file forensics to find the string "Batman" in one of the files to prove it once and for all. First, ask the user for the ABSOLUTE path to Bruce Wayne's folder and save it to a string variable. Next, convert the string from the user to a Path variable. Third, you will list...

Suppose that you wish to purchase a car and that your bank is offering to you...

Suppose that you wish to purchase a car and that your bank is offering to you a loan. You wish to explore the nature of this loan and the payments that you would have to make given certain circumstances such as the amount that you borrow. Fortunately, Excel offers a function (PMT) that calculates the payment for a loan based on constant payments and a constant interest rate. The syntax of the function is: PMT(rate, nper, pv) where rate is...

4. Mendel worked with pea plant varieties with contrasting traits. Suppose that you are studying pea...

4. Mendel worked with pea plant varieties with contrasting traits. Suppose that you are studying pea plants with either round peas (R) or wrinkled peas (r), yellow peas (Y) or green peas (y), purple flowers (P) or white flowers (p), tall plants (T) or short plants (t). Assume that you are starting with a cross where one plant (1) has the genotype R/r; y/y; P/p; T/t and the second plant (2) is R/r; Y/Y; P/p; t/t. If you were to...

You derive a cell line from a tumour and discover that it is deficient in DNA...

You derive a cell line from a tumour and discover that it is deficient in DNA helicase activity and DNA repair activity. Is this helicase deficiency likely to affect base excision or nucleotide excision repair? Explain your reasoning.

Question