It allows them to be flattened on a microscopic slide, so that the chromosomes of individual cells can be observed easily.
<span>the punnet square is composed of spots in the x axis and tails in the y axis hence the combinations: | BL | Bl | bL | bl|
The genotypes are
---BL |BBLL| BBLl| BbLL| BbLl
--- bL |BbLL| BbLl| bbLL| bbLl
--- BL |BBLL| BBLl| BbLL| BbLL
--- bL |BbLL| BbLl| bbLL| bbLl</span>
I have no idea what that answer might b
This model suggests that the cell membrane is a dynamic structure, because the proteins and phospholipids move laterally within the lipid bilayer ( so it is more of a fluid than solid)
(Mark me the brainliest if this has helped)
Mutations present permanent and heritable changes in the genome. We distinguish gene and chromosome mutations. Mutations in the level of genes are called point mutations because only one to several nucleotides are changed. These processes are known as deletion, insertion, and substitution. Deletion presents a loss of nucleotides which changes DNA sequence. When new nucleotides are embedded in the DNA chain, it is known as insertion. Substitution implies the process where new nucleotides are inserted while the ones that were present in that specific spot in a DNA molecule are deleted.
Mutations can also appear in chromosomes altering their number and structure. There are four types of mutations - deletion, duplication, inversion, and translocation. In deletion, a whole or one part of a chromosome is lost. Duplication presents an extra copy of a whole or one part of a chromosome. In an inversion, parts of a chromosome change order, while in translocation a part of one chromosome detaches and then connects to another.
hope this helps