You are experimenting with a drug that interferes with spindle formation, and replicated chromosomes fail to migrate to the poles at anaphase. What type of chromosome mutation would you expect to see? A. Aneuploidy B. Chromosome deletions C. Chromosome duplications D. Chromosome translocations

You are experimenting with a drug that interferes with spindle formation, and replicated chromosomes fail to migrate to the poles at anaphase. What type of chromosome mutation would you expect to see? A. Aneuploidy B. Chromosome deletions C. Chromosome duplications D. Chromosome translocations

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Description: You are experimenting with a drug that interferes with spindle formation, and replicated chromosomes fail to migrate to the poles at anaphase. What type of chromosome mutation would you expect to see?A. AneuploidyB. Chromosome deletionsC. Chromosome

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter7: The Cellular Basis Of Inheritance

Section: Chapter Questions

Problem 10RQ: Abnormalities in the number of X chromosomes tend to be milder than the same abnormalities in...

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The kinetochore is a structure that functions toa. connect the centromere to microtubules.b. connect centrioles to microtubules.c. aid in chromosome condensation.d. aid in chromosome cohesion.
What are homologous chromosomes? a. The two halves of a replicated chromosome b. Two identical chromosomes from one parent c. Two genetically identical chromosomes, one from each parent d. Two genetically similar chromosomes, one from each parent
Abnormalities in the number of X chromosomes tend to be milder than the same abnormalities in autosomes because of _______. a. deletions b. nonbomologous recombinat ion c. synapsis d. X inactivation
A. Aneuploidy refers to the loss or gain a chromosome part. B. Polyploid cells have extra chromosome sets. A) Both statement is correct B) Both statement is incorrect C) First statement is correct, Second is incorrect D) First statement is incorrect, Second is correct
Which statement about homologous chromosomes is FALSE? Select one: a. They contain the same genes in the same places along the length of the chromosome b. One member of the homologous pair came from your mother, the other from your father c. For a particular gene, one member of the pair may have one allele, while the other has a different allele d. They are joined together at the centromere as the two halves of the typical X-shaped chromosome
A paracentric inversiona. includes the centromere within the inverted region.b. does not include the centromere within the inverted region.c. has two adjacent inverted regions.d. has an inverted region at the very end of a chromosome.
Which of the following would have the shortest p arm of the chromosome? A) acrocentic B) metacentric C) submetacentric D) all of the answers would be equal
Which is NOT a way that deletions can cause abnormal phenotypes? A. Haploinsufficient genes can result because too much gene product is produced. B. Recessive mutations may be expressed if the wild-type allele is deleted, a phenomenon called pseudodominance. C. If the centromere is deleted, then the whole chromosome could be lost during cell division. D. All of the above 1 points
What structure is most important in forming the tetrads? a. centromere b. synaptonemal complex c. chiasma d. kinetochore
An unfertilized egg cell from a goldfish contains 47 chromosomes. How many chromosomes would be present in one of this goldfish's intestinal cells? a) 47 chromosomes b) 94 chromosomes c) 23 chromosomes d) 188 chromosomes e) 24 chromosomes
What result demonstrated that the spindles shorten at the chromosome end during anaphase? Group of answer choices a) The stained region of the microtubules didn’t move b) The stained region of the microtubules moved away from the chromosome c) The stained region of the microtubules stayed the same size d) The stained region of the microtubules moved towards the chromosome e) The stained region of the microtubules got larger
Can chromosome duplications cause negative effects to an organism? Why or why not? A. No. Duplicated regions of chromosomes are quickly lost by looping out during meiosis. B. Yes. Duplicated regions increase gene dosage, which affects processes like development that require specific amounts of protein. C. No. Cells with duplications function even more efficiently than those without duplications. D. No. Duplicated regions of chromosomes cannot affect gene dosage because the cell can always compensate for extra copies of genes. E. Yes. Duplicated regions require DNA to be replicated, which delays the cell cycle and wastes energy.