Which statements are true? Explain why or why not.1 Like the lumen of the ER, the interior of the nucleusis topologically equivalent to the outside of the cell.2 ER-bound and free ribosomes, which are structur-ally and functionally identical, differ only in the proteinsthey happen to be making at a particular time.3 To avoid the inevitable collisions that would occurif two-way traffic through a single pore were allowed,nuclear pore complexes are specialized so that somemediate import while others mediate export.4 Peroxisomes are found in only a few specializedtypes of eukaryotic cell.
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
Which statements are true? Explain why or why not.
1 Like the lumen of the ER, the interior of the nucleus
is topologically equivalent to the outside of the cell.
2 ER-bound and free ribosomes, which are structur-
ally and functionally identical, differ only in the proteins
they happen to be making at a particular time.
3 To avoid the inevitable collisions that would occur
if two-way traffic through a single pore were allowed,
nuclear pore complexes are specialized so that some
mediate import while others mediate export.
4 Peroxisomes are found in only a few specialized
types of eukaryotic cell.
Trending now
This is a popular solution!
Step by step
Solved in 5 steps
