hich of the following correctly explains how gene expression can change in a differentiating cell in an animal embryo? A. DNA methylation triggered by apoptosis leads to suppression of some genes and expression of others. B. Presence of germ layers trigger hormonal release from endocrine glands, signaling to certain cells to express genes. C. Cell signals through plasmodesmata allow coordination of cellular activities and cell differentiation. D. Cues from the cytoplasm and from surrounding cells can induce changes in gene expression
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 of the following correctly explains how gene expression can change in a differentiating cell in an animal embryo?
A.
DNA methylation triggered by apoptosis leads to suppression of some genes and expression of others.
B.
Presence of germ layers trigger hormonal release from endocrine glands, signaling to certain cells to express genes.
C.
Cell signals through plasmodesmata allow coordination of cellular activities and cell differentiation.
D.
Cues from the cytoplasm and from surrounding cells can induce changes in gene expression.
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Which of the following correctly explains how gene expression can change in a differentiating cell in an animal embryo?
-
A.
DNA methylation triggered by apoptosis leads to suppression of some genes and expression of others.
-
B.
Presence of germ layers trigger hormonal release from endocrine glands, signaling to certain cells to express genes.
-
C.
Cell signals through plasmodesmata allow coordination of cellular activities and cell differentiation.
-
D.
Cues from the cytoplasm and from surrounding cells can induce changes in gene expression.
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