Answer:
B. The horse and donkey are not members of the same species because their offspring are sterile.
Explanation:
The horse and donkey aren't members of the same species since the donkey has 62 chromosomes while the horse had 64 chromosomes and members of the same species need to have the same number of chromosomes. This leads to the mule having 63 chromosomes which is an odd number of chromosomes so it is sterile.
The necessary element that forms part of the structure of dna and rna is <u>phosphorous</u><u>.</u>
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- A crucial part of DNA, the genetic "memory unit" of all living organisms, contains phosphorus.
- It is also a part of RNA, which reads DNA's genetic code to create proteins and other substances necessary for plant structure, seed production, and genetic transmission.
- All tissues and cells require phosphorus for growth, upkeep, and repair, as well as for the synthesis of DNA and RNA, the genetic building blocks.
- The nucleotides in a DNA sequence are joined by an alternating grey-dark grey sugar-phosphate backbone.
- The structural structure of nucleic acids, including DNA and RNA, is composed of the sugar-phosphate backbone. This molecule's directionality is determined by this backbone, which is made up of alternating sugar and phosphate groups.
- All living things require RNA as a vital component, and the phosphorus (P) it contains cannot be substituted.
learn more about phosphorous here: brainly.com/question/25352398
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Answer:
The nucleus
Explanation:
It's the largest organelle in a cell and holds most of the genetic information
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