90 degrees angles or right angles.
a 90 digree angle
4 sides
In general the 4 interior angles of any quadrilateral always add up to 360 degrees
Perpendicular :)
RectangleA rectangle has 4 congruent angles, but two pairs of congruent sides instead of all sides being congruent.
Adjacent angles
There are many types of angles such as obtuse, right, acute, complementary, supplementary, adjacent, alternate, corresponding, and opposite angles, just to name a few.
a 90 digree angle
kite
4 sides
rectangle
All rhombuses have two pairs of congruent angles (opposite angles are congruent to one another - a square is a special case type of rhombus in which all four angles are congruent).
Hydrogen bonds hold the two strands of DNA together. These bonds form between complementary base pairs - adenine with thymine and guanine with cytosine.
Hydrogen bonds hold the bases together in pairs in DNA. These bonds form between the nitrogenous bases adenine and thymine, and guanine and cytosine in a complementary manner, contributing to the overall stability and structure of the DNA molecule.
Hydrogen bonds are responsible for binding nucleotides on each strand of a DNA molecule. These bonds form between complementary base pairs: adenine (A) pairs with thymine (T) and guanine (G) pairs with cytosine (C).
Hydrogen bonding occurs between DNA nucleotides. Specifically, hydrogen bonds form between complementary base pairs: adenine pairs with thymine and guanine pairs with cytosine. These bonds help stabilize the double helix structure of DNA.
A hydrogen bond holds one nitrogen base to its complementary base in DNA. These bonds form between specific base pairs, such as adenine-thymine and guanine-cytosine.