All cells in a multicellular organism have normally developed from a single cell

Question

All cells in a multicellular organism have normally developed from a single cell and share the same genome, but can nevertheless be wildly different in their shape and function. What in the eukaryotic genome is responsible for this cell-type diversity? a. The genes that encode transcription regulatory proteins b. The regulatory sequences that control the expression of genes c. The genes that code for molecules involved in receiving cellular signals d. The genes that code for molecules involved in sending cellular signals to other cells All of the above e. Indicate if each of the following descriptions matches RNA (R) or DNA (D). Your answer would be a five-letter string composed of letters R and D only, e.g. RDDRR. a. () It is mainly found as a long, double-stranded molecule. b. It contains the sugar ribose. c. ( It normally contains the bases thymine, cytosine, adenine, and guanine. d. )It can normally adopt distinctive folded shapes. e. ()it cam be usedttelate for protein synthesis.

Explanation / Answer

Answer:

1). All cells in a multicellular organism have normally developed from a single cell and share the same genome, but can nevertheless be wildly different in their shape and function. What in the eukaryotic genome is responsible for this cell-type diversity?
A. The genes that encode transcription regulatory proteins
B. The regulatory sequences that control the expression of genes
C. The genes that code for molecules involved in receiving cellular signals
D. The genes that code for molecules involved in sending cellular signals to other cells
E. All of the above - Correct Option (there are different regulatory mechanisms of controlling the gene expression and all the above options and contribute to diverse shape and function)

2) Indicate if each of the following description matches RNA (R) or DNA (D)

a. (D) It is mainly found as a long, double stranded molecule - this is a feature of DNA
b. (R) It contains the sugar ribose - this is a feature of RNA
c. (D) It normally contains the base thymine, cytosine, adenine, and guanine - this is a feature of DNA
d. (R) It can normally adopt distinctive folded shapes - this is a feature of RNA (example tRNA)
e. (R) It can be used as the template for protein synthesis - this is a feature of RNA (e.g. mRNA)

So the five letter string is: DRDRR

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