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2 years ago

What general type of mutation has the greatest effect on the protein produce

Biology

1 answer:

Lyrx [107]2 years ago

8 0

Answer: The most serious of these mutations will be the insertion of 2 bases. Becasue the genetic code is read in triplets, a 2 base insetion will alter the reading frame of the code causing a frameshift mutation meaning every amino acid after the site of the mutation will be incorrect.

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Comparing DNA Replication and Transcription

ozzi

The missing information has been completed as:

DNA Tempelate complementary DNA mRNA

3' TTACG 5' 5' AATGC 3' 5'UUACG 3'

3' AAUGC 5' 5' TTACG 3' 5'UUACG 3'

3' GGCGG 5' 5' CCGCC3' 5' CCGCC3'

' 3'TGCATCG5' 5' ACGTAGC 3' 5' ACGUAGC 3'

3' AGACTC 5' 5' TCTGAG 3' 5' AGACTC 3'

3'GATAAGA 5' 5' CTATTCT 5' 5' CTAUUCA 3'

3' CTGGCTAC5' 5' GACCGATG 3' 3'CUGGCUAC 5'

Explanation:

Some of the sequence of DNA given is in 3' to 5' direction, mRNA sequence is also given.

The DNA is double stranded helix which replicates by semi conservative mode. The two strands unwind to act as a template for other strands. In transcription the 3' to 5' strand acts as a template because RNA synthesis takes place in 5' to 3' direction. mRNA is single strand. It has nucleotides in it from which 3 base pairs acts as a code for amino acid.

The following table shows DNA strand having complementary sequaence and mRNA synthesized.

DNA Tempelate complementary DNA mRNA

3' TTACG 5' 5' AATGC 3' 5'UUACG 3'

3' AAUGC 5' 5' TTACG 3' 5'UUACG 3'

3' GGCGG 5' 5' CCGCC3' 5' CCGCC3'

' 3'TGCATCG5' 5' ACGTAGC 3' 5' ACGUAGC 3'

3' AGACTC 5' 5' TCTGAG 3' 5' AGACTC 3'

3'GATAAGA 5' 5' CTATTCT 5' 5' CTAUUCA 3'

3' CTGGCTAC5' 5' GACCGATG 3' 3'CUGGCUAC 5'

3 0

3 years ago

A food shows many food chains within a community and how they overlap.

3241004551 [841]

Answer:

The food chain describes who eats whom in the wild. Every living thing—from one-celled algaeto giant blue whales—needs food to survive. Each food chain is a possible pathway that energy and nutrients can follow through the ecosystem.

For example, grass produces its own food from sunlight. A rabbit eats the grass. A fox eats the rabbit. When the fox dies, bacteria break down its body, returning it to the soil where it provides nutrients for plants like grass.

Of course, many different animals eat grass, and rabbits can eat other plants besides grass. Foxes, in turn, can eat many types of animals and plants. Each of these living things can be a part of multiple food chains. All of the interconnected and overlapping food chains in an ecosystem make up a food web.

4 0

2 years ago

Read 2 more answers

Cual es la funcion del enrollamiento del ADN

Salsk061 [2.6K]

Answer:

Los cromosomas se forman cuando la cromatina se condensa durante la división celular, sólo en este proceso son visibles. Este proceso es muy importante, ya que esta condensación o sobre enrollamiento, hace que se economice espacio, si esto no sucediera, la cromatina excedería el espacio nuclear disponible.

6 0

2 years ago

What weight of Tris-HCL (MW=121) is required to prepare 2L of a 15% w/v solution?

podryga [215]

Explanation:

Percentage w/v means that weight of solute present in 100 ml of a solution. Hence, 15% w/v means that 15 gram of solute per 100 ml of solution.

Hence, for 2 L (or 2000 mL) preparation the amount of mass will be calculated as follows.

$\frac{15 g}{100 ml} \times 2000 ml$

= 300 g

Thus, we can conclude that weight of Tris-HCL required is 300 g.

7 0

3 years ago

What would happen if the operator sequence of the trp operon contained a mutation that prevented the repressor protein from bind

Readme [11.4K]

In the absence of tryptophan, the genes trpA-E will not be transcribed.

If there were a mutation in the operator region of the trp operon, there would be a nucleotide change in the sequence of the operator. Mutations in the repressor that prevent its binding to the operator will lead to constitutive expression Mutations that prevent binding of the inducer without affecting the ability to bind to the operator lead to a non‑inducible phenotype.

The tryptophan binds to the trp repressor and causes it to change shape, converting into its active form. The trp repressor with the bound tryptophan attaches to the operator, blocking RNA polymerase from binding to the promoter and preventing transcription of the operon.

To learn more about tryptophan, here

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8 0

1 year ago