Proteins are made up of monomer units called amino acids
Answer:
The 'gene' which causes (inherited, red and green types of) colour blindness is found only on the X chromosome. So, for a male to be colour blind the colour blindness 'gene' only has to appear on his X chromosome. For a female to be colour blind it must be present on both of her X chromosomes.
Explanation:
Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
Answer:
Because it contains two different sex chromosomes
Explanation:
Man in its genome contains two sex chromosomes, X and Y, while woman contains two X chromosomes.
In order to be a carrier of a sex-linked trait, a person should have one copy (one allele) of a certain trait. For example, if a female has one X chromosome with mutation (e.g. disease carrying) and one normal X chromosome, she is carrier for the disease. But, on the other hand if a male has one X chromosome with mutation he will develop that disease.
Answer:
All cells exhibit basic structural similarities. The general plan of cellular organization varies between different organisms, but despite these modifications, all cells resemble one another in certain fundamental ways. Match each description with a feature. separates contents of cell from surroundings made up of contains sugars, salts, and amino acids contains prokaryotic DNA contains eukaryotic DNA matrix?
1. Prokaryotic and eukaryotic cells both has a nucloid/nucleus, organelles, cell membrane, contains ribosomes, has cytoplasm
2. Nucleus; contains eukaryotic DNA
3; Nucloid; contains prokaryotic DNA
4; Cytoplasm; semi fluid matrix, contains sugars salt and amino acids
Explanation:
The cell from latin cella, meaning "small room" is the basic structural, functional and biological units of all known organisms. A cell is the smallest units of life and they are often called the building blocks of life the study of cell is called cytology. cells contains cytoplasm enclosed within a membrane which contains many biomolecules such as potein and nucleic acids. most plants and animal cells are only visible under a microscope with dimensions between 1 and 100 micrometers.
