Answer:
Explanation:
Heterozygous is represented as -Aa
Individual 111 genotype is -AA
A cross between a normal father and a woman with dimples will be
AA×Aa
!
AA Aa AA Aa
Hence, the probability of the child have dimple is 50% i.e the child will also be heterozygous for dimple also, 50% chance of having a normal child.
If the trait is characterised by a reccesive gene then, the Chance is of having a child with dimples is 0%.
When a phase in the cell cycle does something incorrectly, mutation occur which leads to cell death or cancer.
<h3>What happens when a phase in the cell cycle does something incorrectly?</h3>
When a phase in the cell cycle does something incorrectly, then they cannot move to opposite poles in the later phases of mitosis, which result the cell with extra chromosomes and a daughter cell with missing chromosomes. These mutations can lead cell death, disease or cancer.
So we can conclude that When a phase in the cell cycle does something incorrectly, mutation occur which leads to cell death or cancer.
Learn more about cell here: brainly.com/question/13123319
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Answer:
maybe can you mark me please again
Explanation:
Im happy to likt taha
Answer:
its obviously b or c but im almost positive c....
<span>Antibiotics need to be used with caution because of evolution. If you treat bacteria with an antibiotic, some will be resistant by sheer chance. Those ones will survive and go on to divide - producing more antibiotic resistant bacteria. With medical antibiotics, they must be taken for the entire course. Even after symptoms have passed, bacteria remain in the body. If a patient stops taking antibiotics too early, the survivors can keep dividing and cause a new antibiotic resistant infection. With the normal course of medication, antibiotics kill off enough bacteria and keep them at bay long enough for the immune system to finish the job and take care of any resistant stragglers.
The real danger, though, comes from antibiotic use in livestock. It's more cost effective to feed cattle with a constant supply of antibiotics, whether they're sick or not (as opposed to just treating them when they're sick). These antibiotics keep them from getting sick, but it means that eventually bacteria adapt to them and gain resistant. To make matters worse, the antibiotics are often passed from their bodies in their waste, which can go on to contaminate waterways. This can disrupt ecosystems and produce antibiotic-resistant bacteria in the wild. This type of usage is of much more concern because of its scale - there are far more cows on antibiotics than people</span>