When the p53 gene is damaged, which event may happen? a. cells can divide uncontrollablyb. cells will fix the dna pass the g1 checkpointc. cells will pass the g2 checkpointd. cells will always undergo apoptosis

A. Cells can divide uncontrollably.

Explanation:

If the p53 gene is damaged, tumor suppression is reduced. A cell with damaged DNA may proceed with its division. The daughter cells produced are likely to inherit mutations due to the unrepaired DNA of their mother cell. Over many generations, cells tend to accumulate mutations. These mutations result in a p53 protein, and DNA damage can accumulate in cells which means it will not able to control cell proliferation because it is unable to trigger apoptosis. Such cells may continue to divide in an uncontrolled way, leading to tumor growth. This means people who inherit only one functional copy of the gene (or none) will most likely develop tumors.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.