<span>An operon is an arrangement of genes consisting of an operator, a promoter, and a repressor.</span>
Answer:
C. 75 percent
Explanation:
Hope the answer is correct
Describe how cancers grow.
Answer;
Seedless plant.
The fossil of a plant reveals that it produced spores that were used for reproduction. It was a seedless plant.
Explanation;
-Seedless vascular plants are plants such as fern and horsetails, liverworts, mosses; which contain vascular tissues, but do not produce flowers or seed.
-These plants reproduce using haploid , unicellular spores instead of seeds.
-These plants have life cycles with two distinct stages; one in which spores are produced and one in which sex cells are produced.
Dna sugar- deoxyribose
Rna sugar- ribose
DNA base- thymine
RNA base- uracil
DNA location- nucleus
RNA location- cytoplasm/nucleus/ ribosomes