Changes in dna, such as insertions or deletions, are likely to lead to
A - the absence of all limbs in an organism
B - a darker nucleus inside each cell
C - cells being smaller in size
D- the appearance of new traits

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.