When analyzing a normal human male karyotype, all of the chromosomes can be sorted into homologous pairs EXCEPT Select one: a. X chromosomes b. chromosome pair number 21 c. autosomal chromosome number 18 d. sex chromosomes

When analyzing a normal human male karyotype, all of the chromosomes can be sorted into homologous pairs EXCEPT Select one: a. X chromosomes b. chromosome pair number 21 c. autosomal chromosome number 18 d. sex chromosomes

Name: When analyzing a normal human male karyotype, all of the chromosomes c
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Description: When analyzing a normal human male karyotype, all of the chromosomes can be sorted into homologous pairs EXCEPTSelect one:a. X chromosomesb. chromosome pair number 21c. autosomal chromosome number 18d. sex chromosomes

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter18: Cell Reproduction

Section: Chapter Questions

Problem 1CT: Normally you cant inherit both copies of a homologous chromosome from the same parent. Why? Assuming...

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In a human karyotype, chromosomes are arranged in 23 pairs. If one of the autosomal pairs is examined, which of the following characteristics will the two chromosomes of the pair have in common? a) loci and staining pattern b) length and DNA sequence c) X-like shape and alignment on the metaphase plate d) alleles and centromere position
Bill and Betty have had two children with Down syndrome. Bill’s brother has Down syndrome and his sister has two children with Down syndrome. On the basis of these observations, indicate which of the following statements are most likely correct and which are most likely incorrect. Explain your reasoning. a. Bill has 47 chromosomes. b. Betty has 47 chromosomes. c. Bill and Betty’s children each have 47 chromosomes. d. Bill’s sister has 45 chromosomes. e. Bill has 46 chromosomes. f. Betty has 45 chromosomes. g. Bill’s brother has 45 chromosomes.
Which statement about homologous chromosomes is FALSE? Select one: a. They contain the same genes in the same places along the length of the chromosome b. One member of the homologous pair came from your mother, the other from your father c. For a particular gene, one member of the pair may have one allele, while the other has a different allele d. They are joined together at the centromere as the two halves of the typical X-shaped chromosome
Change in chromosome numbers will lead to abnormalities. Which of the following is a correct match between the chromosome number and the syndrome? A. Trisomy 18 : Patau syndrome B. Monosomy 18 : Turner syndrome C. XXXY : Klinefelter syndrome D. Trisomy 21 : Edward syndrome
Any deviation in the number of chromosomes that involves individual chromosomes, as opposed to entire sets of chromosomes, is known as which one of the following?a. Aneuploidy c. Duplication b. Disomy d. Translocation
How many chromosomes are in a human karyotype?
Examination of a karyotype reveals 23 pairs of chromosomes, with each homologous pair illustrating similar size and centromere location. Which of the following can be concluded from this karyotype?a. The individual has Down syndrome.b. The individual is a female.c. The individual does not have cystic fibrosis.d. The individual does not have sickle-cell anemia.
The diploid number of an organism is 12. How many chromosomes would be expected from the following conditions? a. monosomic for 1 chromosome b. trisomic for 2 chromosomes c. tetrasomic for 1 chromosome d. nullosomic for 2 chromosomes e. monoploid f. triploid
A boy with Down syndrome (trisomy 21) has 46 chromosomes. One parent and his two older sisters have a normal phenotype, but each have 45 chromosomes. a)Explain how this is possible. b)How many chromosomes do you expect to see in karyotypes of the parents? c)What term best describes this kind of chromosome abnormality? d)What is the probability the next child of this couple will have a normal phenotype and have 46 chromosomes? Explain your answer.
Below is a pedigree of a rare human skin disease. Who in the pedigree has the same Y chromosome as the II-3 male? Give all correct answers.
In a sample of 1000 patients with Down syndrome, a geneticist discovers that 95% of them are trisomic, while 5% have diploid number of chromosomes. Explain this discrepancy.
What are the types of gametes that can be produced by an individual with the genotype AaBb? a. Aa,Bb b. AA, aa, BB. bb c. AB, Ab, aB, ab d. AB,ab