Answer:
Stem cells are called extraordinary by the narrator because stems cells which is mostly gotten from bone marrow is use in medicine for regeneration and repair of damaged tissues and organs. It is use to correct part of organs that is not working properly. It has been use for treatment of diseases over the years.
Explanation:
Stem cells are special human cells that have the ability to develop into some specialized cells which can be used to regenerate and repair damaged tissues and organs.
Stem cells can be use to replace tissues that has been damaged through diseases and it has been use for treatment of different type of diseases over the years.
Answer:
Explanation:
Since there is no extra information about a specific gene and its inheritance patterns, I am going to base my answers of examples I create.
To begin with, in a pair of alleles, dominant alllele is represented by A (Capital letter) and recessive is done by a (small letter). If an organism has AA (homozygous dominant) it will always show the dominant trait. If it has Aa (heterogyzous dominant) it will also show the dominant trait as one of the alleles is dominant, and finally if it as aa then it will show recessive trait
Which allele in mouse is dominant vs recessive is primarily figured out based on inheritance pattern. If majority of offspring represent a certain trait like black fur coat it is likely that the dominant trait for that gene is black fur coat. Allele that is recessive is masked by the dominant allele so if parents are
Aa * Aa ---> you'll get 4 genotypes AA, Aa, Aa,aa (Here the AA, Aa, Aa will all show the dominant trait because the capital letter A represents dominant allele and it masks the small letter a) whereas, aa will show recessive trait because there is no capital letter or dominant allele to mask the recessive trait.
Mitosis creates two identical daughter cells from one parent cell