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What is the most likely reason for the observation that traits can skip a generation? The...
People sometimes suggest that certain traits “skip a generation.” Which of the following is the best...
People sometimes suggest that certain traits “skip a generation.” Which of the following is the best biological explanation for this saying? A A parent with two dominant alleles occasionally does not pass on an allele. B A recessive trait is sometimes masked in the F1 generation but reappears in the F2 generation. This is because of the law of segregation. C The law of independent assortment means that certain traits can be masked by a dominant allele but be phenotypically...
What is the probability that for a particular trait, two heterozygous parents will both contribute a...
What is the probability that for a particular trait, two heterozygous parents will both contribute a recessive allele to their child? For a typical Mendelian trait with complete dominance how many different phenotypes are possible? For alleles that display incomplete dominance, how many phenotypes are possible? Some phenotypes appear to be expressed on a continuum. Several traits in this lab demonstrate this. If most genes have only two alleles, how can some phenotypes be so variable? Chin shape genes are...
Question 5 2 pts A couple decides that they want to have three daughters. What is...
Question 5 2 pts A couple decides that they want to have three daughters. What is the probability that this will actually occur? 1/4 1/16 1/8 1/2 Question 6 2 pts Which of the following is incorrectly matched? pleiotropy: a single allele contributes to several traits multiple alleles: an individual acquires more than two alleles for a given trait polygenic inheritance: several alleles contribute to a single trait incomplete dominance: an allele...
Circle the correct answer, there may be more than one correct answer 1. Diploid Organisms: a)...
Circle the correct answer, there may be more than one correct answer 1. Diploid Organisms: a) typically have 23 pairs of chromosomes b) are heterozygous for a trait when they carry different alleles c) carry 2 copies of chromosomes d) are homozygous for a trait when they carry different alleles 2. Why are garden peas a good subject for Mendel's experiments? a) garden peas had either or traits b) garden pess could self-pollinate to produce offspring of the same variety...
Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
Background Problem N° 4 Objective: To use pedigrees in a case of an inherited disease in...
Background Problem N° 4 Objective: To use pedigrees in a case of an inherited disease in humans in order to determine the type of generic inheritance 3 4 According to the National Cancer Institute (NCI), "a pedigree is an illustration of family history and it shows relationships between family members and patterns of inheritance for certain traits and diseases."3 3 2 3 Pedigrees use standard symbols and conventions: O female: male; affected | Analyze the pedigree for myopia (nearsightedness) in...
Question 7 1 pts Which is the most likely reason that lactose tolerance alleles selectively swept...
Question 7 1 pts Which is the most likely reason that lactose tolerance alleles selectively swept through certain human populations? O Drinking lots of milk caused a greater mutation rate Lactose intolerance reduced reproduction Lactose tolerance had a large effect on survival o It was random which populations experienced the selective sweep o None of these reasons explains the selective sweep Question 8 1 pts Which of the following can be concluded from the Grant's long-term study of the medium...
2 The inheritance of autosomal dominant traits also can be explored through pedigree analysis, Polydactylism, having...
2 The inheritance of autosomal dominant traits also can be explored through pedigree analysis, Polydactylism, having extra digits, results from a dominant gene (P). Using Figure 3.8, explain the appearance of polydactyly in children of generation 3. O IIION FUR 8.8 Polydactylism pedigree. X-linked traits are carried exclusively on the X chromosome. Because a male possesses only one X chromosome, if he receives an X chromosome that carries an X-linked trat he will express that trait. For a female to...
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive)....
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive). There are 126 A1A1, 167 A1A2 and 88 A2A2. Is this population in Hardy-Weinberg equilibrium (3 pts)? In a population of Gragons, there are 3151 A1A1, 1678 A1A2 and 2014 A2A2 individuals. If the environment changes so that the homozygous recessive genotype suffers a reduction of fitness where its fitness is now 0.73, but the other genotypes are unaffected, what will be the frequency...
the Internet can contain vinuses. Unless you need to edit it's safer to stay in Protected...
the Internet can contain vinuses. Unless you need to edit it's safer to stay in Protected view. IL LES 1) A man has six fingers on each hand and six toes on each foot. His wife and their daughter have the normal number of digits.(Remember that extra digits is a dominant trait.) What fraction of this couple's children would be expected to have extra digits? 2) In cocker spaniels, black color (B) is dominant over red (b), and solid color...
Circle the correct answer, there may be more than one correct answer 1. Diploid Organisms: a) typically have 23 pairs of chromosomes b) are heterozygous for a trait when they carry different alleles c) carry 2 copies of chromosomes d) are homozygous for a trait when they carry different alleles 2. Why are garden peas a good subject for Mendel's experiments? a) garden peas had either or traits b) garden pess could self-pollinate to produce offspring of the same variety...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
Background Problem N° 4 Objective: To use pedigrees in a case of an inherited disease in humans in order to determine the type of generic inheritance 3 4 According to the National Cancer Institute (NCI), "a pedigree is an illustration of family history and it shows relationships between family members and patterns of inheritance for certain traits and diseases."3 3 2 3 Pedigrees use standard symbols and conventions: O female: male; affected | Analyze the pedigree for myopia (nearsightedness) in...
Question 7 1 pts Which is the most likely reason that lactose tolerance alleles selectively swept through certain human populations? O Drinking lots of milk caused a greater mutation rate Lactose intolerance reduced reproduction Lactose tolerance had a large effect on survival o It was random which populations experienced the selective sweep o None of these reasons explains the selective sweep Question 8 1 pts Which of the following can be concluded from the Grant's long-term study of the medium...
2 The inheritance of autosomal dominant traits also can be explored through pedigree analysis, Polydactylism, having extra digits, results from a dominant gene (P). Using Figure 3.8, explain the appearance of polydactyly in children of generation 3. O IIION FUR 8.8 Polydactylism pedigree. X-linked traits are carried exclusively on the X chromosome. Because a male possesses only one X chromosome, if he receives an X chromosome that carries an X-linked trat he will express that trait. For a female to...
the Internet can contain vinuses. Unless you need to edit it's safer to stay in Protected view. IL LES 1) A man has six fingers on each hand and six toes on each foot. His wife and their daughter have the normal number of digits.(Remember that extra digits is a dominant trait.) What fraction of this couple's children would be expected to have extra digits? 2) In cocker spaniels, black color (B) is dominant over red (b), and solid color...
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