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sveticcg [70]
2 years ago
9

(d) Researchers discovered a strain of C. Parvum that expresses a functional variation of the lactate dehydrogenase gene. A DNA

sequence comparison showed that the variant differs from the normal sequence in the region that codes for the enzyme's allosteric site. Predict the effect of FX11 treatment on C. Parvum cells that express this variant of lactase dehydrogenase. Provide reasoning to support your prediction. Explain how gossypol and FX11 might be used as drugs to treat C. Parvum infections in humans without negatively affecting human cells.
Biology
1 answer:
natima [27]2 years ago
8 0

Answer:

This mutation will produce an enzyme with modified hydrogenase activity

Explanation:

The allosteric site is critical to switch on/off the enzyme activity. The enzymes with allosteric activity are regulated by binding an effector molecule in a different site to the active site of the enzyme.

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Ben Affleck has a cleft chin, but his ex-wife Jennifer Garner does not. Neither one of their two daughters (Violet and Seraphina
kherson [118]

Answer:

Ben - Y Xc

Jen - XCXC

Violet - XCXc

Seraphina - XCXc

Samuel- Y Xc

Explanation:

Given -

Ben has a cleft chin

Let the allele for cleft chin be "c"

and the allele for normal chin be "C"

When Ben with cleft chin mates with wife Jennifer Garner having normal chin, then the two girl child do not have cleft chin but the boy has cleft chin.

This means that the allele C could be X -linked and the mother is not the carrier but the father is

The genotype of father Ben would be Y Xc

Genotype of mother would be XCXC

Genotype of two daughters XCXc  , XCXc which means they are carrier for the next generation

Genotype of Boy - Y Xc

3 0
2 years ago
Egg membranes from three eggs were carefully taken out and labeled as a, b , c. Each of these membranes were filled with 1% solu
Readme [11.4K]

Answer:

The correct answer would be -

Membrane A - Hypotonic solution - the movement of water towards inside the cell

Membrane B - Isotonic soltion - there will be no movement of water

Membrane C - Hyertonic solution - the movement of water towards outside of the cell

Explanation:

This experiment deals with tonicity as this solution will affect the tonicity of the egg membrane. In membrane A there are more solutes inside the cell than outside the cell so it is hypotonic solution so the movement of water will be towards inside the cell.

In membrane B the solutes are equal in both sides so there will be no movement as its isotonic condition while in membrane C the solution is in hypertonic situation as the solutes are more outside than inside.

Thus, the behavior of the membranes are-

Membrane A - Hypotonic solution - the movement of water towards inside the cell

Membrane B - Isotonic soltion - there will be no movement of water

Membrane C - Hyertonic solution - the movement of water towards outside of the cell

8 0
2 years ago
The image below shows plant cells. plant cells What feature of cells is best demonstrated in the image? A. Cells are formed from
joja [24]

Answer:

c

Explanation:

got right

8 0
1 year ago
The DNA is mostly _____ because the hyperchromic effect is very _____. The fact that there is any hyperchromicity at all means t
maria [59]

Answer:1.c 2.d 3. d

Explanation:

The DNA hyperchromic effect can be defined as the absorbance of radiation or light by the nitrogen bases of DNA. This phenomena is effective when the DNA is in single stranded condition. For observing the hyperchormic effect the DNA is required to be denatured at high temperature or by increasing the level of pH.

The two strands of the DNA when get separated the absorbance of the DNA solution also increases. This results due to reduction in the base-base interaction and hence, increases the absorbance of light like UV by the bases.

6 0
2 years ago
Read 2 more answers
Identify the structural class of each gland described here 1. flask shaped gland unbranched ducts slender, straight gland unbran
posledela

1. flask-shaped gland unbranched ducts=SIMPLE ALVEOLAR GLAND

2. slender, straight gland unbranched ducts = SIMPLE TUBULAR GLAND

3. combination of gland shapes = TUBULAR ALVEOLAR

4.branched ducts=COMPOUND GLAND (salivary glands)

All of them are the exocrine glands (their product is secreted on the epithelial surface).


8 0
2 years ago
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