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4 years ago

A DNA sequence is shown. AAT - CCG - GTG Which sequence best shows the result of a substitution mutation in the DNA?

1 answer:

6 0

Mutations are sudden spontaneous random changes that occur in the genetic make up of an organisms. A substitution mutation is a type of mutation that exchanges one base for another, for example a change in a single base such as switching an A to a G). Substitution could cause a change of codon to one that encodes a different amino acid and cause a small change in the protein produced. In the above sequence AAT-CCG-GTG in substitution of a single base

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Two organisms, AABBCCDDEE and aabbccddee, are mated to produce an F1 that is self-fertilized to produce F2. If the capital lette

Galina-37 [17]

Answer:

a) How many genotypes will occur in F2

--The genotypes would be- AA Aa aa BB Bb bb CC Cc cc DD Dd dd EE Ee ee (15 genotypes)

Reason-

This is because, after crossing the parents, the F1 generation would all be Heterozygous dominant since one parent is homozygous dominant, while the other is homozygous recessive.

b) 25% of all F2 genotypes would be recessive across the 5 loci

Reason-

This is because each loci would produce only a 25% chance for a recessive trait, which would results to a general probability of 25% also.

c) Yes i would change my answer in A and B if the parent cross was- AABBCCDDEE X aaBBccDDEE

d) Yes i would change my answer in A and B if the parent cross was- AABBCCDDEE X aabbccddEE

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3 years ago

Which nutrient is found in meat, fish and pulses? When digested it forms amino acids

Sliva [168]

Your answer would be protein :)

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3 years ago

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comparative profile for covid-19 cases from china and north america: clinical symptoms, comorbidities and disease biomarkers

Hatshy [7]

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Learn more about the COVID-19 with the help of the given link:

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2 years ago

Which of the following statements about asteroids is true?

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D. Asteroids vary greatly in size and are mostly made up stone, iron and nickel

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4 years ago

Explain how scientists use geologic time to determine the age of landforms.

Pavlova-9 [17]

Answer:

Explanation:Following are the techniques or methods or approaches we can say that were used by the scientists to determine the geologic age:

1. Relative age dating

2. Absolute age dating.

3. Radiation measurement.

4. Stratigraphic superposition.

5. The fossil record.

The scientists used the method of relative dating to divide Earth's past in different chunks of time when alike organisms were on Earth. After that, to discover the actual number of years ago that events occurred, the scientists used the method of absolute dating.

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3 years ago