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Do different kinds of cells in an embryo have different sets of genes?
Wiki User
∙ 13y ago
No. With the odd exception (eg. mature red blood cells because they have no nucleus) every cell in a multicellular organism has the same set of genes. What gives the cells their different character, their phenotype, is which of these genes are expressed at any given time.
Wiki User
∙ 13y ago
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Why are some cells brain cells and others skin cells when the DNA is the same?
All body cells have the same DNA. They all play different roles because the brain sends them signals to do so. You can't have them all doing the same thing. Ex: If you only have skin cells, then what cells will make up your heart or liver or bones?
How do different kinds of cells develop in an embryo?
Every cell contains DNA within the nucleus, containing the blueprint to build many different proteins in the cell. Different signals can cause embryonic cells to select specific parts of the DNA which can then be used to synthesize proteins, eventually building different cell types.
Why are there different kinds of cells in your body?
there are 200 types of cells
What are two kinds of twins?
There are identical and fraternal. Fraternal twins happen when 2 different embryos start growing at the same time, so you get a brother and a sister or 2 sisters or 2 brothers that are the same age. Identical twins happen when 1 embryo splits into 2 embryos when it is only a few cells big, so both babies have the same genes.
How can cells have the same DNA?
Although all calls have the DNA only some parts of it are turned on different cells (this is called gene expression). Which genes of the DNA are turned on determine the functions and kinds of cell. Even in the same kinds of cell genes can be differently expessed depending on what the cell needs to do at the time. If you have a drink of alcohol for instance a whole bunch of genes turn on in the liver to detoxify the alcohol. When you have meal hundreds of genes in the stomach, intestine and blood stream kick into action to digest the food and send it away for storage or immediate use. Cells have many things that regulate gene expression some things turn genes off or down others turn them up or on. There are factors turn on whole cascades of genes.
Are there different kinds of stem cells?
yes
What is it called when cells change to become different kinds of cells to do different jobs?
Cellular Differentiation
Would you expect all human cells to look like cheek cell?
No. There are all different kinds if cells that do all different kinds of functions.
How do cells become different?
There are many ways in which cells become different. They could take the shape of many different kinds of things.
How can the same signal have different effects in different Cells?
The Specificity of Cell Signaling and Coordination of the Response The explanation for the specificity exhibited in cellular responses to signals: different kinds of cells have different collections of proteins. (This is because different kinds of cells turn on different sets of genes). The response of a particular cell depends on its particular collection of signal receptor proteins, relay proteins, and proteins needed to carry out the response. Two cells that respond differently to the same signal differ in one or more of the proteins that handle and respond to the signal. Although cells A, B and C all have the same receptor protein, differences in other proteins account for their differences in responses.
What is a organisms have many different kinds of cells?
the human body
Is stem cell research still cloning?
Cloning is asexual reproduction. There are all kinds of research that can be done on stem cells without creating any actual embryo or causing the gestation of an embryo in order to give birth to a new organism.
