Answer:
Explanation:
Genetic code is a sequence of Nitrogenous base in RNA(ribonucleic acid) or DNA (deoxyribonucleic acid) that determines or specify an amino acid. Genetic codes consist of a triplets code called codon that are written in three alphabeth each codon specifies an amino acid.
Example is AUG that specifies methionine which is a start codon. There are 64 codon, 61 of them specifies an amino acid while 3 are called the stop codon as they terminate amino acid formation process.
An alteration in the sequence of this nucleotide can lead to the formation of a new amino acids other than the specify.
If an animal is having a well developed skeleton system, a backbone then it belongs to vertebrate. Also, size is an important factor to identify vertebrate and invertebrate.
Explanation:
Vertebrates have a well developed skeleton system and backbone. Their skeleton system is made up of bones and cartilage. While, invertebrates don't have any backbone.
Due to lack of backbone or skeleton system, invertebrates are small in size. As there is no proper mechanism to support large body so invertebrates are small in size and also they move very slowly. This is also a major difference in vertebrate and invertebrate.
Another important difference between vertebrate and invertebrate is that body of vertebrate is covered with some structure like hair, feathers, skin, scales or a combination of these.
These features help to distinguish vertebrate from invertebrate by observing them, no need to dissect.
Answer:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Other Info That Might Help:
In contrast, in eukaryotes, all of the cell's chromosomes are stored inside a structure called the nucleus. Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones. Humans inherit one set of chromosomes from their mother and a second set from their father.
All cells are surrounded by a membrane and contain genetic material but otherwise are structurally diverse. All cells have structural and functional similarities. Structures shared by all cells include a cell membrane, an aqueous cytosol, ribosomes, and genetic material (DNA).
Answer:
Mono: Monosaccharide sugars
Di: Disaccharide sugars
Poly: Polysaccharide sugars
The reason for adding the prefixes Mono,Do and Poly Infront of the three types of sugars is to show how many sugars are in each molecule right off the bat.
Hope this helps :)
