The process by which the developmental fate of a cell is set is called [A] deter
ID: 78826 • Letter: T
Question
The process by which the developmental fate of a cell is set is called [A] determination. [B] morphogenesis. [C] differentiation. [D] induction. [E] totipotency. Tissue induction occurs when [A] nuclear genes are lost m some tissues. [B] signals are secreted m one part of the developing embryo and are transported via the circulatory system to another site in the embryo to activate tissue differentiation. [C] direct contact from one tissue delivers an environmental signal to the tissue that will be induced. [D] two tissues come into contact with one another, releasing transcription factors. [E] Development occurs [A] throughout the life of the organism. [B] only in non-diving cells [C] only in animals. [D] in ectoderm and endoderm, but not in mesoderm. [E] only during growth of the organism. The process by which one tissue (or group of cells) affects the development of adjacent tissue is called [A] determination. [B] morphogenesis. [C] placode. [D] differentiation. [E] induction. The boundaries of individual segments and the organization of the anterior-posterior axis within individual segments is determined by genes [A] maternal effect [B] gap [C] pair rule [D] segment polarity [E] Hox The process that results in spatial organization of an organism or a tissue is called [A] induction. [B] differentiation. [C] apoptosis. [D] determination. [E] pattern formation.Explanation / Answer
7 ) A determination
8) C it is believed that direct cell to cell contact is responsible for induction process. This might involve some cell surface proteins which act as signalling molecules
9 a development occurs throughout the life time of an organism, ie the life cycle.
10 E induction
This is especially seen in young embryos. Absence of inducing tissue can even affect the develops of the induced tissue.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.