Can you please check 1 through 12 to if anwers are correct. S Fomre|SchoologyStudentvUEchoologyBayside Fome PageIt s Elemental - Ele.Bal Desmos | TestingF'lay KahootB. What physlcal traits do you share with your family members?Showtimel Anseor.while you watch. They are in order of the vidco Stop.r rewind the vidco if sooded1. What type of cells does meiosis create?a. Body Cellsb. Gametesc. Identical Cells7. Which term best describes twochromosomes that have the same types ofgenes in the same locations?a. HomologoUs chromosomesCb. Analogous chromosomes2. How many chromosomes does a sperm orc. Sister chromosomesegg cell contain?a. 46Cb. 928. What does crossing over result in?a. Homologous chromosomesb. Recombinant chromosomesC. Sister chromosomesc. 233. Interphase takes place before meiosis, butnot mitosis.a. Trueb. Falsec. It depends9. During which phase does crossing overtake place?a. Telophase 1b. InterphaseC. Prophase 14. How many chromosomes tesult at the endof interphase?10. How many cells are produced aftermeiosis 2?a. 2B.a. 46Ab. 92C. 23b. 4C. 85. How many chromatids result at the end ofinterphase?a 46b. 92c 2311. Which two processes lead to variety?a. Crossing over and Telophase IIb. Crossing over and IndependentAssortmentc. Cytokinesis and IndependentAssortment6. How many times during meiosis does PMATtake place?Onceb Twicec Three Times12 What is it called when cells receive toomany or too few chromosomes?a. Mutationsb Incomplete meiosisc. Nondisjunction

Answer 1. Correct option is option (b) Gametes 2. Correct option is option (c) 23 3. Correct…

1. What type of cells does melosis create? a. Body Cells b. Gametes c. Identical Cells 2. How many chromosomes does a sperm or egg cell contain? a. 46 C b. 92 c. 23 3. Interphase takes place before meiosis, but not mitosis. A a. True b. False c. It depends

1. What type of cells does melosis create? a. Body Cells b. Gametes c. Identical Cells 2. How many chromosomes does a sperm or egg cell contain? a. 46 C b. 92 c. 23 3. Interphase takes place before meiosis, but not mitosis. A a. True b. False c. It depends

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter12: Meiosis And Sexual Reproduction

Section: Chapter Questions

Problem 1DAA: BPA and Abnormal Meiosis In 1998, researchers at Case Western University were studying meiosis in...

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Stuck Sperm Cells lining the epididymis secrete a glycoprotein (beta-defensin) that coats sperm and facilitates their passage through cervical mucus. There are two common alleles for human beta-defensin: a wild-type allele (wt) and an allele with a deletion (del). To find out if this genetic variation could affect fertility, Gary Cherr and his colleagues tested the ability of sperm from men with different genotypes to pass through a gel barrier. The barrier was designed to simulate cenrical mucus. The researchers placed sperm on one side of the gel, then used a video camera to record how many passed into the gel over time. FIGURE 41.12 illustrates their results. FIGURE 41.12 Effect of beta defensin genotype on the ability of sperm to penetrate a gel that simulates cervical mucus. Sperm from 16 men was tested: 4wt/wt, 6wt/del, and 6 del/del. Fresh sperm were placed on one side of the gel, and a video camera was focused on a region 2.75 mm into the gel. The number of sperm in this region was recorded at one-minute intervals for six minutes. Sperm numbers shown are averages. Bars indicate range. After four minutes, how many sperm from men with a wild-type allele were in the camera's view an average?
The probability of a crossover occurring between two genes on the same chromosome ________. a. is unrelated to the distance between them b. decreases with increasing distance between them c. Increases with the distance between them
Analysis of Autosomal Recessive and Dominant Traits Huntington disease is a rare, fatal disease that usually develops in the fourth or fifth decade of life. It is caused by a single autosomal dominant allele. A phenotypically normal man in his twenties who has a 2-year-old son of his own learns that his father has developed Huntington disease. What is the probability that he himself will develop the disease? What is the chance that his young son will eventually develop the disease?
BPA and Abnormal Meiosis In 1998, researchers at Case Western University were studying meiosis in mouse oocytes (germ cells) when they saw an unexpected and dramatic increase of abnormal events (FIGURE 12.6). Improper segregation of chromosomes during meiosis is one of the main causes or human genetic disorders. The spike in abnormal meiosis began right after the mouse facility started washing the animals' plastic cages and water bottles in a new, alkaline detergent. The detergent had damaged the plastic, which as a result was leaching bisphenol A (BPA). BPA is a synthetic chemical that mimics estrogen, the main female sex hormone in animals. Though it has since been banned for use in baby bottles, BPA is still widely used to manufacture other plastic items and epoxies (such as the coating on the inside of metal cans of food). BPA-free plastics are often manufactured with a related compound, bisphenol S (BPS), that has effects similar to BPA. FIGURE 12.6 Abnormalities in meiosis that occurred after exposure to BPA. Top, the most abnormal meiosis events occurred in mice that were housed in damaged plastic caging with damaged plastic bottles. Damaged plastic releases BPA. Bottom, fluorescent micrographs show the chromosomes (red) and spindle (green) in nuclei of mouse germ cells in metaphase I. A Normal metaphase; BD abnormal metaphase. What percentage of mouse oocytes displayed abnormalities of meiosis with no exposure to damaged caging?
G6PD deficiency is an X-Linked recessive disorder. When people who have this disorder eat fava beans, they have a dangerous acute reaction in which a large number of their red blood cells rupture. A mother has the disorder; the father does not. What is the chance that any child of this union will have the trait?
Effect of Paternal Grandmother's Food Supply on Infant Mortality Widely available historical data on periods of famine show that before the industrial revolution, a failed harvest in one autumn often led to severe food shortages the following winter. Retrospective studies have correlated infant mortality with the abundance or food during a grandparent's child hood. FIGURE 10.11 shows results from one or these studies. FIGURE 10.11 Relative risk of early death of female child, correlated with the age at which her paternal grandmother experienced a winter with a food supply, that was scarce (blue) or abundant (red) during childhood. The dotted line represents no difference in risk of mortality. A value above the line means increased risk; one below the line indicates reduced risk. Children have a period of show growth around age 9. What trend in this data can you see around that age?
Effect of Paternal Grandmother's Food Supply on Infant Mortality Widely available historical data on periods of famine show that before the industrial revolution, a failed harvest in one autumn often led to severe food shortages the following winter. Retrospective studies have correlated infant mortality with the abundance or food during a grandparent's child hood. FIGURE 10.11 shows results from one or these studies. FIGURE 10.11 Relative risk of early death of female child, correlated with the age at which her paternal grandmother experienced a winter with a food supply, that was scarce (blue) or abundant (red) during childhood. The dotted line represents no difference in risk of mortality. A value above the line means increased risk; one below the line indicates reduced risk. Compare the mortality risk of girls whose paternal grandmothers ate well at age 2 with girls whose grandmothers experienced famine at the same age. Which girl was more likely to die early? How much more likely was she to die?
Effect of Paternal Grandmother's Food Supply on Infant Mortality Widely available historical data on periods of famine show that before the industrial revolution, a failed harvest in one autumn often led to severe food shortages the following winter. Retrospective studies have correlated infant mortality with the abundance or food during a grandparent's child hood. FIGURE 10.11 shows results from one or these studies. FIGURE 10.11 Relative risk of early death of female child, correlated with the age at which her paternal grandmother experienced a winter with a food supply, that was scarce (blue) or abundant (red) during childhood. The dotted line represents no difference in risk of mortality. A value above the line means increased risk; one below the line indicates reduced risk. There was no correlation between early death of a male child and eating habits of his paternal grandmother, but there was a strong correlation with the eating habits of his paternal grandfather. What does this tell you about the location of epigenetic changes that gave rise to these data?
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If a human who is a tongue roller (T) and has unattached ear lobes (E) marries a person who cannot roll their tongue and has attached earlobes, could they produces an offspring that was also a non-tongue roller with attached earlobes? What would be the genotype of the first parent? the second parent? A)yes; TtEE:ttEeB)no; TTEE:tteeC)yes;TtEe:ttee