Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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- Which of the following is false? Group of answer choices With a pericentric inversion, there is no loss in genetic material. Haploinsufficiency is caused by a duplication event causing increased expression of a gene. An effect of aneuploidy is that it changes the dosages of some genes. Pseudodominance indicates that one of the homologous chromosomes has a deletion. Sterility is a possible effect of autopolyploidyarrow_forwardWhich of the following best describes the kinetochore? the core of proteins that forms the metaphase plate in a dividing cell a structure composed of several proteins that associate with the centromere region of a chromosome and that can bind to spindle microtubules the ring of actin microfilaments that will cause the appearance of the cleavage furrow the centromere region of a metaphase chromosome at which the DNA can bind with spindle proteinsarrow_forward. With regards to the grasshopper testes experiment, diakinesis is an ideal stage to determine chromosome number due to the degree of condensation of the chromosomes? Count the chromosomes at this stage. Does it represent a diploid or a haploid number?arrow_forward
- What is a genome? Describe the following terms/structures as they pertain to a eukaryotic genome: diploid, haploid, gamete, homologous chromosomes, locus, and genesarrow_forwardHow does the density of genes found on chromosome 22 compare with the density of genes found on chromosome 21, two similar-sized chromosomes? How does the number of genes on chromosome 22 compare with the number found on the Y chromosome?arrow_forwardExplain in detail 2 human chromosomal disorders. What is the chromosomal abnormality? What are the signs, symptoms, and/or resulting syndrome?arrow_forward
- a. What is the diploid number of chromosomes for a human? b. What is the haploid number of chromosomes for a human? Which cells are considered diploid, gametes or somatic cells? C. d. Which cells are considered haploid, gametes or somatic cells?arrow_forwardplease helparrow_forwardWhich one of the following options most accurately describes how the ~3000 megabases (Mb; ~3,000,000,000 nucleotides) of the haploid human genome are distributed on chromosomes? The haploid human genome is distributed on autosomes 1-22 and X and Y (so, 24 chromosomes). The haploid human genome is distributed on the homologous pairs of autosomes 1-22 and X and Y (so, 46 chromosomes). The haploid human genome is distributed on a single chromosome (so, 1 chromosome). The haploid human genome is distributed on one pair of homologous chromosomes (so, 2 chromosomes).arrow_forward
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