Assume that a mutation occurs in the gene responsible for the production of hexosaminidase a, such that only about 50% of the enzyme activity is found in the heterozygote compared with a homozygous normal individual. if heterozygotes are phenotypically normal, we would say that the mutant allele is recessive to its normal allele.

Answers

Answer 1

Answer:

This statement is true.

In the case of autosomal dominant disease, the person is either homozygous (which is very rare) or heterozygous. On the molecular level, either the mutation produced a new deleterious protein for the organism, or the mutation affected an existing protein in the physiological state and that a 50% activity is not enough to compensate for the needs. of the body.

In case of autosomal recessive disease, the sick person is always homozygous. If the two loci each have a different mutant allele, it is called a "composite heterozygote". People with autosomal recessive inheritance disorder have "mandatory heterozygote" parents.

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Peter and Rosemary Granta. spent more than 30 years studying Darwin’s tortoises.
b. studied the migration of the camel.
c. actually observed evolution by natural selection taking place.
d. all of the above

Answers

(d) all the above is right answer

when you take the exit ramp ooff the expressway and merge onto the next road, you see yellow lines dividing the roadway. what do the yellow lines tell you about the traffic flow?

Answers

look up traffic rules on whatever state you live in and it will tell you everything :) not much of an answer but thats all i have <3

U die in a fire and decrease in your organically

Imagine that you are studying the control of β-globin gene expression in immature red blood cells (mature red blood cells contain β-globin protein but lack a nucleus and therefore the β-globin gene). If you deleted a sequence of DNA outside the protein-coding region of the β-globin gene and found that this increased the rate of transcription, the deleted sequence likely functions as a(n) _____. a. enhancer b. promoter-proximal c. element promoter d. silencer e. any of the above

Answers

Answer:

d. silencer

Explanation:

Based on the information provided within the question it can be said that the deleted sequence most likely functions as a silencer. This term refers to a DNA sequence that is located thousands of base pairs away from the gene that they actually control. In this situation, seeing as the DNA sequence that was found outside the protein coding region actually affected the rate of transcription when it was deleted then it is considered a silencer.

Carbohydrates _____. in the body are primarily fats
are primarily sugars and starches
are the most readily available source of energy for organisms
are the largest of the four main biological macromolecules

Answers

Answer:

are the most readily available source of energy for organisms is the correct answer.

Explanation:

Carbohydrates contain hydrogen, carbon, and oxygen.

Carbohydrates are the most readily available source of energy for organisms.

It is the most necessary source of energy for human diets.

Carbohydrates are broken down into sugars(fructose, galactose, and glucose)and it used as the source of energy.

Carbohydrates are present in fruits, vegetables, grains, and milk products.

Carbohydrates are the simplest form of nutrition and it is metabolized our bodies that whys it is considered an available source of energy.

are the most readily available source of energy for organisms.

HELPPPPPPPPPPPP ASAP PLS I BEGA: beryllium
B: cobalt
C: magnesium
D: zinc

Answers

ITS B IM PRETTY SURE

Answer:

I think it is B, but I might be wrong

The following are 1.0 M acid solution, which has the largest concentration of hydronium [H3O+]?A. HNO2

B. H2CO3

C. H2SO4

D. H3BO3

Answers

H2SO4 has the largest concentration of hydronium [H3O+] because H2SO4 is a strong acid.

Answer: Option (C) is the correct answer.

Explanation:

An acid which is able to dissociate completely into ions in water is known as a strong acid.

For example, $H_(2)SO_(4) \rightleftharpoons 2H^(+) + SO^(2-)_(4)$

Therefore, sulfuric acid is a strong acid as it dissociates completely into ions in water.

Whereas $HNO_(2)$ , $H_(2)CO_(3)$ , and $H_(3)BO_(3)$ are all weak acids as they dissociates slightly in water as follows.

$H_(3)BO_(3) \rightleftharpoons H^(+) + H_(2)BO^(-)_(3)$

$HNO_(2) \rightleftharpoons H^(+) + NO^(-)_(2)$

$H_(2)CO_(3) \rightleftharpoons H^(+) + H_(2)CO^(2-)_(3)$

Morover, sufuric acid upon dissociation is giving 2 hydrogen ions and rest all are giving one hydrogen ion.

Thus, we can conclude that out of the given options $H_(2)SO_(4)$ has the largest concentration of hydronium [H3O+].

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