What is dosage compensation? How do Barr bodies and X-inactivation relate to this concept?
Homework Answers
Dosage compensation is the process by which organisms equalize the expression of genes between numbers of different biological sexes.Across species ,different sexes are often characterized by different types and numbers of sex chromosomes .In order to neutralize the large difference in gene dosage produced by differing numbers of sex chromosomes among the sexes, various evolutionary branches have acquired various methods to equalize gene expression among the sexes.
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What is dosage compensation? How do Barr bodies and
X-inactivation relate to this concept?
Genetics X inactivation A Barr body is a highly condensed X chromosome. How many Barr bodies...
Genetics
X inactivation A Barr body is a highly condensed X chromosome. How many Barr bodies would you expect to find in a person with the triple X (XXX) condition? Multiple Choice O none O O C Multiple Choice o none none o o o з o O4
Describe the importance of Barr bodies; explain the stages and mechanisms of X inactivation in mammals...
Describe the importance of Barr bodies; explain the stages and mechanisms of X inactivation in mammals including the importance of the Xic; identify the product the Xist gene and state its function(s) 4.
X-chromosome inactivation is a phenomenon that A. establishes dosage compensation in mammals so that males and...
X-chromosome inactivation is a phenomenon that A. establishes dosage compensation in mammals so that males and females express the same levels of genes on the X chromosome. B. is responsible for the fact that males in mammalian species are hemizygous. C. is observed in Drosophila so that males and females express the same levels of X chromosome gene products. D. Two of the above answers correctly finish the sentence.
A female sex cell has six Barr bodies. How many X chromosomes are there in this...
A female sex cell has six Barr bodies. How many X chromosomes are there in this cell?
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms....
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms. Which of the following cases would result in correct sex chromosome dosage between males and females within the species? Choose ALL correct answers 4 points possible A species that has S and T sex chromosomes where males are ST and females are SS. Gene expression of the single chromosome in males is doubled and females do not inactivate either Schromosome. A species that only...
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms....
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms. Which of the following cases would result in correct sex chromosome dosage between males and females within the species? Choose ALL correct answers 4 points possible A species that has X and Y sex chromosomes where males are XY and females are XX. Gene expression of the SRY gene is doubled in males, and both of the X chromosomes is expressed in females. A...
How many Barr bodies (inactivated X chromosomes) are expected in cells of a human individual who...
How many Barr bodies (inactivated X chromosomes) are expected in cells of a human individual who is XXX, 2A. A. 1 B. 2 C. 3 D. None of the above.
A triple-X (XXX) individual has how many Barr bodies? O 2 O 3 04
A triple-X (XXX) individual has how many Barr bodies? O 2 O 3 04
if a mammalian cell shows one or more Barr bodies, what is the most likely sex...
if a mammalian cell shows one or more Barr bodies, what is the most likely sex of the individual from which the cell has been taken?
How does Midwifery relate to the concept of wellness as defined in this wellness course? How...
How does Midwifery relate to the concept of wellness as defined in this wellness course? How does it relate to specific challenges or supports for wellness? What is the impact of the issue on society?
Genetics
X inactivation A Barr body is a highly condensed X chromosome. How many Barr bodies would you expect to find in a person with the triple X (XXX) condition? Multiple Choice O none O O C Multiple Choice o none none o o o з o O4
Describe the importance of Barr bodies; explain the stages and mechanisms of X inactivation in mammals including the importance of the Xic; identify the product the Xist gene and state its function(s) 4.
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms. Which of the following cases would result in correct sex chromosome dosage between males and females within the species? Choose ALL correct answers 4 points possible A species that has S and T sex chromosomes where males are ST and females are SS. Gene expression of the single chromosome in males is doubled and females do not inactivate either Schromosome. A species that only...
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms. Which of the following cases would result in correct sex chromosome dosage between males and females within the species? Choose ALL correct answers 4 points possible A species that has X and Y sex chromosomes where males are XY and females are XX. Gene expression of the SRY gene is doubled in males, and both of the X chromosomes is expressed in females. A...
A triple-X (XXX) individual has how many Barr bodies? O 2 O 3 04
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