4.Într-o familie, soţia are grupa de sânge B (III), iar soţul ei, grupa 0 (I). Ştiind că tatăl femeii aavut grupa de sânge A (II), stabiliţi următoarele: a) genotipurile celor trei indivizi; b) genotipurile şi fenotipurile posibile ale grupelor de sânge pentru descendenţa familiei respective; c) procentul descendenţei homozigote posibile pentru copiii familiei pentru situaţia în care soţul ar fi avut grupa de sânge AB (IV).Scrieţi şi etapele/ algoritmul rezolvării problemei.

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

How is transcription similar to translation in terms of base pairing?

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.