Answer:
The answer to the given question is =7/8
Explanation:
In autosomal dominant traits, one copy of the affected gene is enough to cause the disease. Let ’A’ be the affected gene, ‘a’ be the non affected gene. Since IV-4’s parents are a couple of affected and non-affected. So, he has the genes Aa, i.e. a single affected gene.
A a
a aA aa
a aA aa
Number of children affected=
Number child affected out of three = 
At least one child affected out of three = 1-P (number of children affected out of 3 )
= 
= 
So, the answer to the given question is 7/8
The evidence about the ancient Egyptians that suggests that this claim is inaccurate are:
- They had a well-developed agricultural system.
- They raised domesticated animals.
- They developed a writing system.
- They used early forms of tools.
<h3>What is a Supporting Detail? </h3>
This refers to the use of evidence in order to validate a claim that is made through the use of factual or statistical data.
Hence, we can see that based on the fact that people thought that the pyramids of Egypt were built by aliens was false because there are supporting details to prove them otherwise and they are listed above.
Read more about ancient Egyptians here:
brainly.com/question/18885281
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Answer:
Like the lac operon, the trp operon is a negative control mechanism. The lac operon responds to an inducer that causes the repressor to dissociate from the operator, derepressing the operon. The trp operon responds to a repressor protein that binds to two molecules of tryptophan.
A dichotomous key is a tool that helps the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish.
Answer:
A).symbiotic
Explanation:
A symbiotic relationship refers to an interaction between the two organisms in which both the organism gets to benefit from each other. The symbiotic relationship after some time becomes permanent and both the organism become dependent on each other that both are unable to survive without each other.
In the given question, the microbes growing in the digestive system helps us digest food as they use the complex component of food which is not easily digested by the system, therefore, the microbes gets the nutrients and the system is able to digest the complex biomolecules.
Thus, Option-A is the correct answer.
