The following auxotrophic mutant strains were isolated from wild type, haploid yeast and tested for growth on four precursors, A-D, known to be involved in the biosynthesis of thymine. Supplement added to minimal medium A B C D Thymine 9 10 14 18 21 Show a simple linear biosynthetic pathway of the four precursors and the end product, thymine. Indicate which step is blocked by each of the five mutations.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error? the object is an asteroid, not a dwarf planet. the object is a moon, not a dwarf planet. the object is not a dwarf planet because it travels with other objects. the object is not a dwarf planet because it is round.

Below are the three main organs that make up the plant body.