Answer:
they come from the same place as other nucleotides, that make up the DNA and RNA of nuclei. They are formed in the Ribosomes of a cell, which use RNA to decide what sort of polypeptides/proteins to create, and (by extension) the nucleotides that make up the RNA.
Explanation:
This type of mutation is beneficial mutation
Mutations are permanent transmissible changes that occur in an individual’s genetic code. Some of these changes can cause destructive conditions such as sickle cell disease or Down syndrome, while many may not be harmful, and even irrelevant. Sometimes, a mutation that will provide an individual with a benefit may take place. This type of mutation is said to be beneficial. An example is the trichomatic vision of humans which gives humans the ability to perceive, and distinguish between red, green, and blue colors.
Answer:
B. Multiple allele means more than two forms of the same gene in the population and polygenic inheritance means more than one gene contributes to the phenotype of a trait.
Explanation:
- Multiple alleles are an alternative form of allies and can occupy the same gene ad only two of them can be found in the same organism. Such as the ABO blood group.
- A polygenic or a multiple gene inheritance is a hypothetical gene that s often difficult to characterize and traits control a multiple of genetic loci, they are relatively small and interchangeable.
6 & 7
Structure 6 is the Rough Endoplasmic Reticulum ( RER) while structure 7 is the Golgi apparatus.
Explanation:
The RER has ribosomes aligning its outer membrane (reason why it's referred to as called rough ER). The ribosomes manufacture polypeptide chains that enter the lumen of the RER. The polypeptide chains are properly folded using chaperones in the lumen of the RER and undergo post-translation modifications, These proteins then undergo Quality Control checks and the proper ones are allowed to proceed to the Golgi apparatus.
Proteins from the RER reach the Golgi apparatus through vesicles that bud off of the <em>trans</em> side of the RER then fuse with the <em>cis </em>side of the Golgi apparatus. The Golgi perform a few more modifications to the proteins including tagging them for delivery , then packages them. Vesicles carrying the proteins bud off of the <em>trans</em> side of the Golgi and get transported to their destination inside or outside the cell.
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