What was marshall nirenberg and heinrich matthaei’s contribution to our current understanding of the genetic code?
discovery of codons
discovery and extraction of dna
creation of a model of dna
creation of photo 51

The correct answer would be discovery of codons.

Marshall Nirenberg and Heinrich Matthaei experimentally decoded the triplet codons with the help of synthetic homopolymer of nucleic acid.

They used synthetic RNA which is made up of uracil units only that is, polyuridycil acid (poly-U) and a cellular component which could translate protein.

The poly-U RNA results in the formation of polypeptide chain entirely consisted of phenylalanine. Thus, UUU codes for phenylalanine.

Similarly, other codons were also deciphered.

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.