Hello!
You have three checkpoints here. One at the end of G1, one at the end of G2, and one in the middle of the Mitotic stage.
Let's go through these individually.
The G1 checkpoint determines whether or not a cell should begin cell replication. It checks to see whether the cell has grown to an appropriate stage. This checkpoint is seen as the most important. Therefore, this matches with "checks for cell size and DNA damage".
The G2 checkpoint determines if a cell is ready for mitosis. This checkpoint checks whether or not replicated DNA is correct. Therefore, this one matches with "checks whether DNA has doubled and repairs it if damaged".
The M checkpoint occurs at the end of metaphase. This makes sure the chromosomes have aligned properly at the metaphase plate and makes sure the sister chromatids are correctly attached to the spindle microtubules. Therefore, this one corresponds with "checks whether the microtubules have attached to the centromeres of the chromosomes".
Hope this helps!
Answer:
I help ya bud B)
Explanation:
Radio telescopes collects the radio signals from space and focuses them on the antenna.
Hope this helps : )
Answer:
Different genes are expressed in different cells
Explanation:
The instruction is provided to the cell by the genetic material in the form of genes. Genes are the physical segment present on the DNA which can code for a specific protein.
The genes are present in the cells in the condensed form called chromosome which is present in all the cells of the body.
Although all the cells contain the same type of chromosomes or genes but they differentiate to perform different functions.
The differentiation process involves the expression of different genes in different cells as a result of which different proteins are formed in different cells and they perform different functions.
Answer:
Aquatic
Explanation:
In aquatic environments, most of the upper and inferior eukaryons have external reproduction systems, for example, egg lying or free disposal of sperm. This is a common feature on fishes, mollusks, crustaceans, sea-worms, sponges and other lower forms.
It does not count for mammals, having these latest internal systems of reproduction.
All the other environment named, are terrestrial. Where the most majority of the living being had evolved to use internal fecundation.
Answer:
D) AUG
Explanation:
A) false-- AAC codes for Asn
B) false-- AGU codes for Ser
C) false-- UGA is a stop codon
D) true
To read such a table, the one of the right (my preferred choice) , you start by selecting a letter on the left side, then the second letter from the top, and the third from the right side.
Hope this helps! :)
