4 deletion
Explanation:
deletion is a type of genetic mutation involving the removal of a base pair
The cell is deffusion.
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There would be less variability in the genes of the watermelon plants and is denoted as option A.
<h3>What is Variability?</h3>
This is defined as the difference between organisms which is caused by genetic or environmental factors.
Using the seeds from the largest, tastiest watermelons will reduce variability over time because these characteristics will become dominant.
Read more about Genetic variation here brainly.com/question/14926046
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During swallowing, the air passageway of the phaynx is covered by the epiglottis
