(I wrote to you more than three types)
There are seven known types of human coronavirus. Four common types (KHUI, OC43, NL63,229E) cause mild to moderate respiratory infection, such as the common cold. There are two types, severe acute respiratory syndrome (SARS-COV) and Middle East respiratory virus syndrome (MERS-COV), that can cause acute respiratory infections. Type VII (nCOV-2019) is the newly discovered novel coronavirus in China.
I’m pretty sure it’s sperm
Answer:
Mitochondria and chloroplast in Eukaryotic cells have their own DNA.
Explanation:
Researchers have found that mitochondria and chloroplasts in eukaryotic cells have their own DNA , they have their own DNA because Chloroplast and mitochondria are subcellular organelles that produces energy for the cells with their own genomes and genetic systems.
Therefore, when dna is replicated, it is transmitted to the daughter cells which produces cytoplasmic inheritance of traits and this is as a result of photosynthesis and respiration by the organelles Chloroplast and respiration.
Answer: The enzymes are important to the digestive system because they help in BREAKING DOWN of food substances that contains fat, carbohydrates and proteins.
Explanation:
In the process of digestion, several substances are secreted into the duodenum which is the first part of the small intestine. The pancreas, through the pancreatic duct, secretes pancreatic juice. This juice contains several digestive enzymes which include:
--> Amylopsin- This helps in the breaking down of starch( CARBOHYDRATES) to maltose.
--> trypsin: this is a protease that helps in the breaking down of PROTEIN into polypeptide.
--> Lipase: This helps in the breaking down of FAT to carboxylic acids and glycerol.
All the above enzymes of the pancreatic juice require an alkaline medium to work in. This is provided by the bile which is secreted in the fall bladder.
Chargaff's law is a rule that in DNA there is always equality in quantity between the bases A(adenine) and T(thymine) and between bases G(guanine) and C(cytosine). They were discovered by Austrian chemist named Erwin Chargaff. Composition of DNA varies from one species to another.
