O acido desoxirribonucleico. Cada ácido nucleico é formado por uma basenitrogenada, uma pentose e um grupo fosfato. Esse grupo de moléculas forma os chamados nucleotídeos. Existem apenas cinco tipos de bases nitrogenadas, são elas:
adenina
citosina
guanina
timina
uracila
grupo chamado de fosfato.
Good day amigo/amiga
<span>Autosomal recessive is one of several ways that a trait, disorder, or disease can be passed down through families. An autosomal recessive disorder means two copies of an abnormal gene must be present in order for the disease or trait to develop</span>
Answer:
Protein synthesis consists of a series of steps ranging from the transcription of DNA to messenger RNA (mRNA), to the coupling of this to transfer RNA (tRNA) and ribosomes to produce polypeptide chains by the addition of amino acids.
Explanation:
DNA is a molecule present in the nucleus of the cell, formed by a double <u>complementary strand</u> that is linked by specific sequences of nitrogenous <u>base pairs</u>. This sequential order contains the organized genetic information of a species.
- The first step in protein synthesis occurs in the nucleus, through the transcription of DNA into mRNA, in which a single strand of mRNA is formed from the sequence of nitrogenous bases, with the help of the enzyme RNA polymerase. This transcription also includes the synthesis of <u>tRNA</u> and ribosomal RNA. Transcription occurs in the 5' → 3' direction of the DNA strand.
- Once the different RNA molecules have been synthesized, the next step occurs in the cell's cytoplasm, with the binding of the mRNA to the minor subunit of the ribosome. In the sequence of nitrogenous bases in mRNA, a triplet of bases is called a <u>codon</u> -the base of the genetic code- each of which will encode a specific <u>amino acid</u>.
- To the complex formed by mRNA and minor subunit of the ribosome a tRNA is coupled, which contains the <u>anticodon</u> that determines this coupling, in addition to the amino acid it encodes. This is the moment when the major subunit of the ribosome is attached and protein synthesis begins.
Each of the amino acids will be linked to others by peptide bonds -following the sequence of codons in the RNA- until synthesis stops with the appearance of the stop codons.
I believe the answer is B: Earth's oceans absorb some of the carbon dioxide from the atmosphere.
Answer:
D
Explanation:
I got it wrong and it showed the answer :))) hope it helps
