BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 9.5, Problem 2MC
Summary Introduction
To determine:
The estimate that
Introduction:
A chromosome contains a single molecule of
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Enumerate and give at least 5 unique mechanisms employed by organisms in order to determine the sex of the offspring. In each case, give an example of a species which represent such a scheme of producing sex(y) descendants.
Put reference
Mechanism
Example
1
2
3
4
5
What evolutionary forces drive the turnover of these sex determination mechanisms?
A scientist predicts that the kittens born with a congenital birth defect will be 25% based on the hypothesis that it is caused be a recessive gene in that breed of cat. After surveying several litters, he found that 44 out of 128 kittens had the defect. Is his hypothesis correct?
Use Chi-Square to solve
rdentify the statement that best interprets the results of the chi-square analysis. Refer
to the chi-square distribution table to identify the statement that best interprets the
chi-square results.
a) It is not unusual that a heterozygous man produced 16 out of 25 offspring with
heterochromia
b) A total number of normal offspring is significantly lower than expected
c) It is unusual that a man with heterochromia had 16 out of 25 offspring with
heterochromia
d) There is a significant difference between the observed number of offspring with
heterochromia and the number of offspring that were expected to have
heterochromia
8. Suppose two parents, a father with the genotype AaBbCcDdee and a mother with the
genotype aaBbCCDdEe, want to have children. Assume each locus follows Mendelian
inheritance patterns for dominance. What proportion of offspring will have each of the
specified characteristics? Round your answers to two decimal places.
a. Same genotype as father%3D
b. Same genotype as…
Chapter 9 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 9.1 - Prob. 1MCCh. 9.1 - Prob. 2MCCh. 9.1 - Prob. 3MCCh. 9.2 - Prob. 1MCCh. 9.2 - Draw a karyotype for a cell with a diploid number...Ch. 9.2 - Prob. 3MCCh. 9.3 - Prob. 1MCCh. 9.3 - Prob. 2MCCh. 9.3 - Prob. 3MCCh. 9.3 - Prob. 4MC
Ch. 9.4 - Prob. 1MCCh. 9.4 - Prob. 2MCCh. 9.5 - Prob. 1MCCh. 9.5 - Prob. 2MCCh. 9.5 - Prob. 3MCCh. 9.6 - Prob. 1MCCh. 9.6 - In what ways are mitosis and meiosis different?Ch. 9.7 - Prob. 1MCCh. 9.7 - Prob. 2MCCh. 9.7 - Draw a diagram to show how nondisjunction of all...Ch. 9.7 - Prob. 4MCCh. 9.7 - Prob. 5MCCh. 9 - Prob. 1MCQCh. 9 - Prob. 2MCQCh. 9 - Prob. 3MCQCh. 9 - Prob. 4MCQCh. 9 - Prob. 5MCQCh. 9 - Which of the following best describes what happens...Ch. 9 - Prob. 7MCQCh. 9 - Explain why evolution often selects traits that...Ch. 9 - Prob. 2WIOCh. 9 - Sketch the relationships among mitosis, meiosis,...Ch. 9 - What is the difference between haploid and diploid...Ch. 9 - In some animals, females can reproduce by...Ch. 9 - How are mitosis and meiosis different?Ch. 9 - Prob. 7WIOCh. 9 - Prob. 8WIOCh. 9 - List some examples of chromosome abnormalities,...Ch. 9 - Some large companies in the United States cover...Ch. 9 - Prob. 1PITCh. 9 - Prob. 2PITCh. 9 - Where do the members of each pair of homologous...Ch. 9 - Review section 9.5 and the Survey the Landscape...
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- Explain why you need both the multiplication and addition rules to calculate the probability that an MN offspring will be produced in a human population The multiplication rule gives the probability that a particular mating will occur and that mating will produce the target genotype, and the addition rule gives the total probability of each target genotype, because the matings that produce the target genotype are mutually exclusive. The multiplication rule gives the probability that a particular mating will occur, and the addition rule gives the probability that the mating will produce the target genotype. The addition rule gives the probability that a particular mating will occur and that mating will produce the target genotype, and the multiplication rule gives the total probability of each target genotype. The multiplication rule gives the probability that a particular mating will produce the target genotype, and the addition rule gives the probability of obtaining the particular…arrow_forwardOf the males who survive to reproduce, let's say that males with the Ho+Ho+ and Ho+Hop genotype have on average 2.5 offspring, while HopHop males have on average 1 offspring. Taking into account both survival and reproduction, how many offspring do you expect each of the three male genotypes to contribute to the total population in the next generation? N(Ho+Ho+)= Enter your answer here N(Ho+Hop)= Enter your answer here N(HopHop) = Enter your answer here NTotal= Enter your answer herearrow_forwardWhich two processes result in the introduction of genetic variation during meiosis? Provide a brief definition of each. A final event (after gamete formation) further contributes to the amount of variation observed within a population. What event is this and why?arrow_forward
- Below is a life table for a hypothetical organism. What is the expected lifetime reproductive success for individuals carrying the A1 allele? (Note: RS: reproductive success) # of individual RS of survivor surviving RS of survivor Age carrying A1 allele carrying A2 allele 1000 1 600 1 420 1 336 1 4 302 272 2 6. 218 1 7 152 1 8. 91 1 9. 46 10 1.84 2.44 3.27 3.54 13arrow_forwardYou are performing a series of experiments on fruit flies. You have a true breeding population of flies with red eyes, and a true breeding population of white eyes. You breed the population of flies to each other to get an F1 generation. In this F1 generation, 75% of the flies have Red eyes, 25% of the flies have white eyes. All the female flies have red eyes, half of the male flies have white eyes and the other half have red eyes. A statistically significant number of baby flies were produced in this cross. 1) What is that number? 2) What is the genotype ratio of the F1 generation? Give the genotypes.arrow_forwardAnswer option for 1: A) independent, B) mutually exclusive, C) mutually inclusive, D) interdependentAnswer options for 2: A) add, B) multiply, C) multiply then add, D) add then divide3 and 4 are fill in the text box.arrow_forward
- Should I try to rescue my sister who is drowning if there is a 75% chance that I will drown in the process? Assume that humans produce an average of 2 offspring in their lifetime. Remember that Hamilton’s rule is satisfied if rB>C. What is the value of C in this situation: What is the value of B in this situation: What is the value of r in this situation: Should I try to rescue my sibling? Yes or noarrow_forwardexplain how meiosis and sexual reproduction generate genetic variability in populations?arrow_forwardIn fruit flies, long wings (L) are dominant over short wings (l). In a population of 45 fruit flies, 27 have LL genotypes, 13 have Ll genotypes, and 5 have ll genotypes. Find the frequency of the following. Show all work and record your answer as a value between 0 and 1 rounded to two decimal places.a. long-winged fruit flies: b. short-winged fruit flies:arrow_forward
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