Two species of bacteria called Lactobacillus bulgaricus and Streptococcus thermophilus.
Answer:
<h3>
α₄β₄ hetero-octamer</h3>
Explanation:
The quaternary structure of proteins describes the arrangement of two or more polypeptide subunits in the space. According to the given information, the enzyme phosphofructokinase-1 (PFK-1) has two different types of subunits namely alpha and beta subunits. A protein with two or more different types of the subunit is said to be hetero-polymer.
There are four alpha subunits and four beta subunits in the protein PFK-1 making a total of 8 subunits. A protein with eight subunits is said to be an octamer. Therefore, the quaternary structure of PFK-1 would include an arrangement of 4 alpha and 4 beta subunits in space.
I think a possible explanation could be evolution
Answer:
Because it is made up of organs that act as a system
Explanation:
The integumentary system, skin, has been referred to as a membrane and an organ, but it is more commonly referred to as a system since it contains organs that operate together. Because it surrounds the body and comprises multiple types of tissues and a membrane, it is sometimes considered an organ.
In meiosis chromsomes come together and share genetic information between daughter cells in prophase one, where in mitosis instead of the ending sequence being four cell two of the cells are the same.
