How big is a typical cell in your body

The trp and lac operons are regulated in various ways. How do bacteria regulate transcription of these operons? Sort the stateme

OLEGan [10]

Answer:

Operon is not transcribed:

-lac operon: lactose absent

-trp operon: tryptophan present

Operon is transcribed, but not sped up through positive control:

-lac operon: lactose and glucose present

-trp operon: tryptophan absent

Operon is transcribed quickly through positive control:

-lac operon: lactose present, glucose not

Explanation:

The trp operon is controlled via negative control only.

Presence of tryptophan will inhibit the transcription of the operon genes

The lac operon is controlled via negative control and positive control.

●Negative control:

--Transcription is turned off due to

active Repressor protein and absence of lactose

--Transcription is turned on due to

Inactive Repressor protein and presence of lactose

●Positive control:

--Transcription rate is higher due to absence of transcription and presence of lactose as a regulatory protein (CAP) adhere to the lac operon promoter

8 0

3 years ago

The wechsler intelligence scale for children (wisc) is a good indicator of innate "genetic" ability for:

goblinko [34]

Answer:

The wechsler intelligence scale for children (WISC) is a good indicator of innate "genetic" ability for children of six to sixteen years old.

Explanation:

Wechsler Intelligence Scale for Children (WISC) is basically a system of testing IQ of children from six to sixteen years old. This testing was created by David Wechsler, who stated that intelligence is a global quality and it should be reflected in children's verbal as well as non-verbal abilities.

This testing system is used by schools for several purposes:

• To evaluate the performance of kids during placement process.

• It is also used to evaluate abilities of dis-abled children or deferentially able children.

• IQ scores from WISC can be used to diagnose the problems of the children such as mental re-tardation or some specific learning dis-ability. It can also be used to determine the problems of the children who face hyperactivity or attention deficiency.

• In addition, the test can also diagnose brain related and neuro-psychological disorder.

Point to remember:

The WISC system is not useful to determine the extreme form of intelligence like IQ below 40 and above 160. Wechsler himself focused on this point many times that test is not adequate for children with IQs of below 70 or above 130. Despite of this fact, people use this test to determine the intelligence of deferentially able children who usually have IQ above 130 that is not very appropriate thing.

<em>Note:</em><em> This answer is very generic based on the statement of the question. If you have some specific options of the questions, please post it again with them or comment. Thank you.</em>

3 0

3 years ago

A polar covalent bond is a bond between

Assoli18 [71]

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The Correct choice is ~

two atoms that share electrons unequally

7 0

3 years ago

The environment can be arranged into different levels of organization. Which of the following shows a correct sequence (order) t

Alexus [3.1K]

Organism

Population

biological community

ecosystem

biome

biosphere

_________________________________

Population is a group of organisms of d same species

A biological community is the population of organisms living together and interacting in a given area

Ecosystem is the interaction between living and non living organism in a community

Biomes are biological communities that are formed in response to a shared physical environment

Biosphere is the part of the earth that contains living organism

7 0

2 years ago

What did the evidence that Darwin collected during his voyage on the HMS Beagle allow him to accomplish ?

navik [9.2K]

The correct answer is: To propose the theory of evolution by natural selection

3 0

4 years ago

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