Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 14SQ
Which of the following statements is incorrect?
- a. Some gene expression patterns can be passed to an individual's offspring.
- b. Expression of a master regulator triggers a gene express.ion cascade.
- c. X chromosome inactivation is necessary for normal development of male mammals.
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Students have asked these similar questions
Which of the following statement(s) is/are true with regard to positional information in Drosophila?
A. Morphogens are a type of molecule that conveys positional information.
B. Morphogenetic gradients are established only in the oocyte, prior to fertilization.
C. Cell adhesion molecules also provide a way for a cell to obtain positional information.
In mammals, males have X and Y sex chromosomes, while females have two Xs. While the Y sex chromosome has very few genes associated with it, the X sex chromosome has many that are important to maintain life. How do mammals account for this in terms of equaling out gene expression levels?
A. Mammals do not need to account for this, but birds do.
B. Females produce more proteins from X-linked genes than males do.
C. The single X of the males works twice as hard to keep up with the female’s two Xs.
D. The females have one X inactivated to permit the males to keep pace with them.
According to the Lyon hypothesis,a. one of the X chromosomes is converted to a Barr body insomatic cells of female mammals.b. one of the X chromosomes is converted to a Barr body in allcells of female mammals.c. both of the X chromosomes are converted to Barr bodies insomatic cells of female mammals.d. both of the X chromosomes are converted to Barr bodies inall cells of female mammals.
Chapter 10 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Gene expression does not vary by ___ . a. cell...Ch. 10 - Binding or ___ to ___ in DNA can increase the rate...Ch. 10 - Muscle cells differ from bone cells because they...Ch. 10 - Prob. 4SQCh. 10 - Mechanisms that govern gene expression do not...Ch. 10 - Prob. 6SQCh. 10 - Prob. 7SQ
Ch. 10 - Prob. 8SQCh. 10 - Which of the following includes all of the others?...Ch. 10 - Prob. 10SQCh. 10 - Prob. 11SQCh. 10 - A cell with a Barr body is ___ . a. a bacterium b....Ch. 10 - Prob. 13SQCh. 10 - Which of the following statements is incorrect? a....Ch. 10 - Prob. 15SQCh. 10 - Explain why somebut not allof an organism's genes...Ch. 10 - Do the same mechanisms that govern gene expression...Ch. 10 - Prob. 3CTCh. 10 - The photos below show flowers from two Arabidopsis...
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- Which of the following statements about the differential expression of human genes is correct? A. Differential expression does not occur during embryogenesis (development of the embryo). B. The unused genes in differentiated cells no longer retain the potential to be expressed. C. Gene expression patterns of all cells are identical. D. Every cell nucleus contains the complete genome established in the fertilized egg.arrow_forwardIn an embryo from a homozygous Bicoid mutant female,which class(es) of gene expression is (are) abnormal?a. Gap genesb. Pair-rule genesc. Segment-polarity genesd. Hox genesarrow_forwardA researcher performs a tissue transplant experiment with an early Drosophila embryo. The researcher observes that transplanting tissue from the area of the embryo that normally becomes the head of the fly to the bottom part of an embryo does not alter the embryological development of that organism. What to conclude from that observation? This observation remains to be explained. The embryo does not produce sufficient survival factors to maintain the transplanted cells. The cell fate of the transplanted cells had not yet been determined. O The transplanted cells all activate the apoptosis response, and thus do not affect the developmental program.arrow_forward
- In marsupials, X inactivation occurs exclusively to paternally derived chromosomes. Which genes will ALWAYS be expressed in this situation? A. maternal X-linked genes B. paternal X-linked genes C. maternal Y-linked genes D. paternal Y-linked genesarrow_forwardAn organism has a relatively large number of Hox genes in its genome. Which of the following is true of this organism? Select one: А. Its Hox genes cooperate to bring about sexual maturity at the proper stage of development. В. Most of its Hox genes owe their existence to gene fusion events. С. The organism must have multiple paired appendages along the length of its body. D. These genes are fundamental, and are expressed in all cells of the organism. E. The organism has the genetic potential to have a relatively complex anatomy.arrow_forwardYou are interested in the expression of regions of the X chromosome at different times in human fetal development. You hypothesize that large regions of the X chromosomes will be expressed at times when parts of the reproductive organs are developing. What structural and chemical characteristics of the X chromosome might you look at over time to determine when expression of genes on the X chromosome is enhanced or repressed?arrow_forward
- Please answer question 14arrow_forwardA cytoplasmic determinant can control development at the early stages of development because....? Group of answer choices a. it is a universal activator of all genes b. it is present evenly throughout the cytoplasm c. it is activated by cell division d. it is controlled by genes present in the cytoplasm e. it is laid down in the egg cell by the motherarrow_forwardWhich of the following statements regarding the Y chromosome in mammals is TRUE?A. The Y chromosome is less than half the size of the X chromosome.B.Y chromosomes are most often present in egg cells and are not found in sperm cells. C.Most female mammals have one Y chromosome. D. The Y chromosome contains no protein-coding genes.arrow_forward
- Which of the following is a FALSE statement? A) An individual with two X chromosomes and one Y chromosome has testes. B. The human female determines the sex of her offspring. (C) Genomic imprinting allows for differential expressions of an allele. D. Epigenetic changes can be passed on to a zygote. Deletion of the SRY gene would cause male fetuses to develop as females.arrow_forwardMaster regulatory genes play critical roles in development. Predict the MOST likely fate of a fly embryo where master regulatory genes were nonfunctional due to mutation. A. Cell division would stop, and the embryo would halt development. B. The embryo would be a collection of undifferentiated cells because they never get the message that will send them down a determination pathway. C. The embryo would be a combination of differentiated and undifferentiated cells because, even in the absence of a functional master regulatory gene, some cells will differentiate on their own. D. The embryo would continue to develop, but there is a high probability that some limbs may end up in the wrong place in the adult.arrow_forwardfill in the blank: a. lincRNA plays a role in regulating ___ making genes but they themselves are encoded in the genome that is considered _____ DNA. b. The most well known example of RNA regulating the expression of DNA is the production of the ___ that coats one copy of the X chromosome in a female forming the ____.arrow_forward
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