What is necessary for a chromosome bridge to occur? a. centromeres are necessary b. chromosome bridges only apply to meiosis c. centromeres and fusion d. fusion is necessary e. applies only to mitosis and involves fusion and centromeres

What is necessary for a chromosome bridge to occur? a. centromeres are necessary b. chromosome bridges only apply to meiosis c. centromeres and fusion d. fusion is necessary e. applies only to mitosis and involves fusion and centromeres

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Description: What is necessary for a chromosome bridge to occur? a. centromeres are necessary b. chromosome bridges only apply to meiosis c. centromeres and fusion d. fusion is necessary e. applies only to mitosis and involves fu

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter14: Human Inheritance

Section: Chapter Questions

Problem 12SA

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Give explanation X and Y chromosomes are not homologs, but in meiosis they do pair and segregate in XY organisms to create 50% haploid gametes with an X chromosome and 50% haploid gametes with a Y chromosome. How is pairing achieved? a. Since all other homologous chromosomes pair, the remaining two chromosomes pair by default. b Pairing proteins are capable of binding to different genes on the X and Y chromosomes, which allows them to pair. c. None of the statements is correct. d. They don't actually pair. Random segregation generally ensures the X and Y chromosomes separate. e.Pseudoautosomal regions that are homologous exist at the tips of both the X and Y chromosomes, and they allow pairing.
Genetic recombination occurs by which process? a. independent assortment b. crossing over c. chromosome segregation d. sister chromatids
A) Hoe many cells are produced by the end of meiosis II? B) Are the cells produced at the end of meiosis II haploid or diploid? C) Are the chromosomes of the four final meiotic products replicated or nonreplicated?
a) In which stage of mitosis do chromosomes condense? (b) If a eukaryotic organism has a total of 34 chromosomes, how many pairs will the chromosomes be arranged in? (c) Define homologous chromosomes.
When does DNA replication occur during meiosis? a. during telophase b. during prophase I c. during anaphase and telophase d. during interphase before meiosis I begins
Which process leads to independent assortment? a)The process of separating chromosomes b)The random alignment of homologs with respect to the others on the metaphase plate c)The process of forming the mitotic spindle d)The process of cytokinesis
When does synapsis between homologous chromosomes occur? A. prophase I of meiosis B. prophase II of meiosis C. prophase of mitosis D. metaphase of mitosis
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
What is the function of the kinetochore during mitosis?a. It promotes the attachment of monads to each other toform a dyad.b. It is a location where a kinetochore microtubule can attachto a chromosome.c. It promotes the condensation of chromosomes duringprophase.d. Both a and b are correct.
Figure 4 shows the hybridization process between plant P and Q. a) Determine the sterile hybrid plant and the fertile hybrid plant. b) What is process A? c) State the chromosome number for the fertile hybrid plant.
Alternative forms of the same gene are called _________ . a. gametes c. alleles b. homologous d. sister chromatids
The term haploid refers to: a. having one set of each type of chromosome b. the 2n condition c. having two sets of each type of chromosome d. the chromosome content of skin cells ...explain your answer