Biology 1450 quiz 6

Which of the following is most likely to occurs if a researcher removes the 5' cap and poly-a tail of an mRNA and j seers the mRNA molecule into a eukaryotic cell?

The molecule will be degraded by enzymes

An mRNA molecule with the sequence 5'-CCG-ACG-3' is being read by a ribosome. During translation which of the following tRNA anticodons will be the first to productively bind with this mRNA?

3'-GGC-5'

The genetic code is essentially the same for all organisms. From this, one can logically assume which of the following statements are true?

A gene from an organism can theoretically be expressed by any other organism.

Using the CRISPR-Cas9 system to correct genetic defect in a mouse brings with it which of the following risks?

Altering non-target mouse genes needed for cell function

Assays analyzing transcription control of gene expression focus on which of the following characteristics?

Amount of the mRNA generated

Which of the following conclusions is consistent with the fact that plants can be cloned from somatic cells

Differentiated cells retain all the genes of the zygote

Which of the following statements best explains why a neuron and a pancreatic cell isolated from the same individual contain different sets of proteins?

Each cell type contains different regulatory proteins and therefore they express different proteins.

Which of the following structural characteristics is most critical for the association between histones and DNA

Histones are positivly charged

Which of the following processes correctly describes alternative RNA splicing.

It can allow the production of proteins of different sizes and functions from a single mRNA.

Which of the following statements correctly describes the function of a single peptide?

It helps target a protein to the ER

Do coronavirus genomes have a DNA intermediate?

No

The product of the bicoid gene in Drosophila is responsible for determining which of the following embryonic features or structures during development?

Orientation of the anterior-posterior (head-tail) axis

Which of the following characteristics is typical of the lyric cycle of a bacteriophage?

The host membrane ruptures, releasing many phages

Which of the following is the most likely phenotype of a yeast mutant that contains histones that are resistant to acetylation?

The mutant will show decreased levels of gene expression?

Which of the following characteristics is directly related to the coding of a single amino acid during the process of translation?

The three base sequence of mRNA