Answer:
punctuated equilibrium
Answer:
these statements are true
B) Insertions or deletions of single base-pairs within a protein coding sequence probably change the amino acid sequence
D) Missense mutations always change the amino acid sequence encoded by a gene
E) Nucleotide substitutions outside of the coding sequence can affect the expression of a gene.
Explanation:
B) insertion or deletion of nucleotide in coding region of DNA can change the amino acid sequence encoded.
D) missense mutation means that the change in nucleotide sequence resulting in change in amino acid sequence encoded by gene.
E) A mutation may alter the promoter of a gene, thereby affecting the rate of transcription.
The correct statements regarding single base pair mutations are: insertions or deletions within a protein coding sequence likely change the encoded amino acid sequence; missense mutations always change the encoded amino acid sequence; nucleotide substitutions outside of the coding sequence can impact gene expression.
Your question focuses on single base-pair mutations and their functional consequences. After considering the provided statements, the three correct answers are: B) Insertions or deletions of single base-pairs within a protein coding sequence probably change the amino acid sequence encoded by a gene. D) Missense mutations always change the amino acid sequence encoded by a gene. E) Nucleotide substitutions outside of the coding sequence can affect the expression of a gene.
A missense mutation is a type of mutation where a single base pair is changed, leading to the substitution of a different amino acid in the resulting protein. This change can alter the function of the protein. On the other hand, insertions or deletions of single base-pairs can often lead to a frameshift mutation, which alters the reading frame and potentially changes every subsequent amino acid in the encoded protein, often resulting in a nonfunctional protein. Lastly, nucleotide substitutions outside of the coding sequence can also affect gene expression by changing areas involved in the regulation of gene transcription.
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Answer: Double Helix model of DNA
Explanation: Which description best explains Watson and Crick's DNA model?. A:DNA single stranded molecule that has nitrogenus base towards its exterior . . B:DNA is a double-helix made of 2 strands linked together with hydrogen bonds . C:DNa is a double-helix that contains nitrogenious bases towards its exterior.
The double Helix model of DNA proposed by Watson and Crick is the most widely accepted model for the structure of the DNA. It features a right-handed double stranded polynucleotide DNA with molecules spirally twisted around each other and coiled around a common axis. Consisting of two sugar-phosphate backbones on the outside, it is bounded together held by hydrogen bonds between pairs of four nitrogenous bases (A, C, G and T) on the inside with pairing occurring always between A and T and, C and G.
Answer:
Nothing. There is absolutely nothing
Explanation:
Answer:
his blood pressure is higher
Explanation:
Because your blood pressure is lower when rested because your blood doesnt need to go as fast when rested
Answer:
Stars are formed such that their death led to the creation of life.
Explanation:
The Big Bang theory was developed in 1927. This theory helps to understand how the universe was created. According to this theory, hydrogen gas was created through a process of expansion and explosion. As a result, stars are formed such that their death led to the creation of life.
Earth formed around 4.54 billion years ago which is equal to approximately one-third of the age of the universe.