Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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An epigenetic study of maternal care in mice was used to study transgenerational epigenetic inheritance. This study found that
- increased maternal care during childhood resulted in lower stress levels as adults and decreased maternal care with their own offspring.
- Increased maternal care during childhood resulted in lower stress levels as adults and increased maternal care with their own offspring.
- Increased maternal care during childhood resulted in higher stress levels as adults and decreased maternal care with their own offspring.
- Increased maternal care during childhood resulted in higher stress levels as adults and increased maternal care with their own offspring.
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- he human phenotype is regulated by epigenetic control of gene expression. Discuss the three main types of epigenetic regulation, illustrating your answer with examples of diseases arising from impairment of each of these processesarrow_forwardTrue or false If epigenetic marks were irreversible, it would be impossible to clone an animal from one of its somatic cell nuclei.arrow_forward75.arrow_forward
- There are a small number of genes in which the maternal or paternal copy that an organism inherits is methylated. In one case in mice there are known mutations in the gene. If a mouse inherits a mutated gene from its mother, the mouse is normal. However, if the mouse inherits a mutated gene from its father, the mouse is much smaller than normal. Based on this information which allele is normally methylated, the paternal allele or the maternal allele? Explain your reasoning.arrow_forwardChoose only one option:arrow_forwardWhat evidence suggests that differences in monozygotic twins may be caused by epigenetic effects?arrow_forward
- In the introduction to this chapter, we discussed the role of famine during early prenatal development and how, through epigenetic effects, it influenced the health of individuals as adults. One effect that has been observed in people who were conceived during the Dutch Hunger Winter is that they suffer more cognitive decline later in life. If these individuals were autopsied after death, what differences might you expect to see in the chromatin of their brain cells? What do the mouse studies of cognition and epigenetic effects suggest?arrow_forwardAre all of your genes expressed in every cell in your body? Explain your answer and include an example in your explanation.arrow_forward
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