7 2 points In 2006, a 19-year-old female Colombian rainbow boa, Epicrates maurus, who had been raised alone since she was born, gave birth to a litter of 11 parthenogenetic offspring. Seven of the baby snakes were healthy, two were deformed and were euthanized, and two were stillborn. The genotype of the living baby snakes was determined at four genes for which the mother snake was heterozygous. Each baby was found to be homozygous at all four genes, but the babies were homozygous for different alleles. At each gene, some babies were homozygous for one of their mother's alleles, while other babies were homozygous for the other of their mother's alleles. What is the most likely explanation for how parthenogenesis occurred in the Columbian Rainbow Boa? A haploid cell formed by meiosis I fused with the first polar body to yield a diploid egg. A haploid cell formed by meiosis II fused with the second polar body to yield a diploid egg. A diploid egg was produced by mitosis. A haploid egg formed. The chromosomes in the egg underwent DNA replication. The sister chromatids separated during anaphase of mitosis but then remained in a single cell as separate chromosomes to yield a diploid egg.

7 2 points In 2006, a 19-year-old female Colombian rainbow boa, Epicrates maurus, who had been raised alone since she was born, gave birth to a litter of 11 parthenogenetic offspring. Seven of the baby snakes were healthy, two were deformed and were euthanized, and two were stillborn. The genotype of the living baby snakes was determined at four genes for which the mother snake was heterozygous. Each baby was found to be homozygous at all four genes, but the babies were homozygous for different alleles. At each gene, some babies were homozygous for one of their mother's alleles, while other babies were homozygous for the other of their mother's alleles. What is the most likely explanation for how parthenogenesis occurred in the Columbian Rainbow Boa? A haploid cell formed by meiosis I fused with the first polar body to yield a diploid egg. A haploid cell formed by meiosis II fused with the second polar body to yield a diploid egg. A diploid egg was produced by mitosis. A haploid egg formed. The chromosomes in the egg underwent DNA replication. The sister chromatids separated during anaphase of mitosis but then remained in a single cell as separate chromosomes to yield a diploid egg.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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