Answer:
B) stain only the thicker peptidoglycan cell walls
Explanation:
Gram staining is a technique which was developed by the Hans Christian Gram in 1884 to distinguish the bacterial strains. Based on the colour absorbed and retained by the bacteria, the bacteria are distinguished either as gram-positive or gram-negative.
He used a colour stain- crystal violet which is a positive dye and binds to the cell wall made of peptidoglycan. The crystal violet binds to the cell wall with the help of a mordant called iodine. If this dye retains inside and the cell appears purple then the cell is considered gram-positive else negative.
Thus, Option-B is correct.
The right answer is D.
This subject has a normal karyotype in terms of chromosome number.
In Kleinfelter's syndrome a karyotype with 2X and a Y (XXY) is observed, and the subject is male (there is no Y chromosome in the image).
In Turner syndrome, there is only one X chromosome (in this karyotype there are two).
In Trisomy 21 we observe three chromosomes 21 (in the picture there are two).
Answer:
Food web
Explanation:
food web:
a system of interlocking and interdependent food chains.
Answer:
metamorphic:)
Explanation:
hope this helps let me know if it’s wrong
First blank is glucose and the second blank is energy storages