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strojnjashka [21]
3 years ago
14

While working in a genetics lab over the summer, you isolated a true-breeding strain of wingless Drosophila. After sharing your

results with your mentor, you learn that six other true-breeding strains of Drosophila with the same mutant phenotype have been isolated independently in your lab. Your mentor asks you to determine if the mutants belong to the same complementation group. What is true about flies that belong to the same complementation group?
a. They all have the same mutation in the same wing- development gene. All flies in a complementation group have identical DNA sequences for this gene.
b. They all have some mutation in the same wing-development gene. Each strain may have a different mutation, but the same gene is mutated in all trains in a complementation group.
c. They all have some mutation in some wing-development gene. Each strain may have a different mutation in a different gene, but all strains within a complementation group have the same phenotype.
Biology
1 answer:
alina1380 [7]3 years ago
5 0

Answer:

C: They all have some mutation in some wing-development gene. Each strain may have a different mutation in a different gene, but all strains within a complementation group have the same phenotype.

Explanation:

From the situation of the question given, we can say that the true statement about flies that belong to different complementation groups is option C primarily because Strains existing in different complementation groups obviously would have mutations in different genes.

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Explain why enzymes are essential or important to maintaining<br> homeostasis in living things.
Minchanka [31]

Answer:

Enzymes are proteins that catalyse (speed up) vital chemical reactions inside the body. Enzymes will only function properly under a small range of certain conditions, such as preferred pH and temperature. If any conditions are outside their specific range then the enzymes cannot function. This could cause the organism to die. Homeostasis relies on automatic control systems that include nervous responses (nervous system) or chemical responses (endocrine system). Receptors and effectors are also needed

I hope this will be useful

8 0
2 years ago
Name the predominant fatty acid in each of the vegetable oil samples
Alex Ar [27]

Answer: Name the predominant fatty acid in each of the vegetable oil are given below:

1) The predominant fatty acid in groundnut oil is oleic acid. Its percentage in the groundnut oil is 46.8% on weight basis.

2)The predominant fatty acid in coconut oil is lauric acid acid. Its percentage in the coconut oil is 47 - 49% on weight basis.

3)The predominant fatty acid in palm oil is palmitic acid. Its percentage in the palm oil is 44% on weight basis.

5 0
3 years ago
Identify what is wrong with the following statement: "If the climate in two geographically separate regions is similar, the same
enyata [817]

Answer:

A. <u>Biomes are not affected by climate</u>

Explanation:

  • The climate of a biome determines its importance as the biomes are formed as a cause and consequence of the climatic factors and hence the plant growth is affected by this and depends on the climatic types hence the Koppen classification is based on the different climatic zones the relationship among the plantains.
  • An example of the Mediterranean climate i.e Cs chappal biome. Has and extremely dry summers and plants are adapted to the extreme season of the variation in the temperatures and the rainfall patterns.
7 0
3 years ago
Compared to many other liquids, water has a high heat of vaporization, which means a relatively large amount of heat must be add
Tpy6a [65]

Answer:

D

Explanation:

Water has a fairly high specific heat, which means that enough heat must be added to it to break the hydrogen bonds between the molecules, allowing them to move freely from each other and escape the water's surface.

3 0
2 years ago
How is enthalpy used to predict whether a reaction is endothermic or exothermic?
Radda [10]

<u>Answer:</u>

<em>329.48 KJ/mol heat is released by the combustion of 2 molof methane</em>

<u>Explanation:</u>

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)

\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]

                            =2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]

                            = -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]

                           = -787 KJ/mol+1116.48 KJ/mol

                                          =329.48 KJ/mol

<em>In this question, </em><em>the enthalpy of formation</em><em> has positive value and hence the </em><em>reaction is endothermic</em><em> in which the heat is released. </em>

3 0
3 years ago
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