You are a graduate student at the university of iowa and working as a teaching assistant for a freshman introductory biology course. two of your students have come to you with a ques- tion about the sequence of an mrna transcribed from a gene. the original dna sequence from which the mrna was transcribed reads: tgacgatcgta. the students were asked to provide the sequence of bases in the mrna and came up with the following mrna sequence: actgctagcat. they are confused because their answer does not match the answer in the book. briefly explain the very common mistake they made and what the correct sequence is.

The corret DNA sequence is ACUGCUAGCAU.

Explanation: The common mistake that they make is, they forget to replace thymine with uracil as a base pair of Adenine. During DNA transcription Thymine is replaced by Uracil in production of messenger RNA. Uracil is a de-mythylated form of thymine and requires less energy to produce.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.