Human Biology: Concepts and Current Issues - With Access (Custom)
15th Edition
ISBN: 9781323045237
Author: Johnson
Publisher: PEARSON
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Chapter 19, Problem 14TY
Summary Introduction
Introduction:
A display of all the chromosome of an organism is called karyotype. A karyotype consists of number and appearance of the chromosome in a nucleus. It is used to detect the deviation that occurs in the chromosome. It is also used to check the abnormalities of the chromosome.
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Answer the following questions based on the given karyotype below:
During the pathoanatomic inspection of a baby-boy's dead body the following abnormalities: polydactily, microcephaly, a cleft
lip and cleft palate, hypertrophy of the parenchymal organs were found. These symptoms are typical of Patau syndrome. What
is the cause of this disease?
Select one:
a. Trisomy on the 21st chromosome.
O b. Trisomy on the 18th chromosome.
c. Trisomy on the 13th chromosome.
d. Trisomy on X chromosome.
e. Monosomy on X chromosome.
a. What is the type of inheritance?
b. What is known of the genotype of the male in the above cross?
c. What is known of the genotype of the female in the above cross?
d. Provide map distances if possible.
Chapter 19 Solutions
Human Biology: Concepts and Current Issues - With Access (Custom)
Ch. 19 - If you might be a carrier of a gene for an...Ch. 19 - Prob. 2QCCh. 19 - Prob. 1CRCh. 19 - Prob. 2CRCh. 19 -
3. Distinguish between genotype and phenotype.
Ch. 19 - Describe the contributions of Mendel to the field...Ch. 19 - Explain how alterations of chromosome number and...Ch. 19 - Prob. 6CRCh. 19 - Prob. 7CRCh. 19 - Describe what is meant by sex-linked inheritance.
Ch. 19 -
9. Explain why lethal diseases caused by dominant...Ch. 19 - Prob. 10CRCh. 19 - All of the following statements about homologous...Ch. 19 - Prob. 2TYCh. 19 -
3. Which of the following statements correctly...Ch. 19 - Prob. 4TYCh. 19 - Prob. 5TYCh. 19 - Prob. 6TYCh. 19 - Prob. 7TYCh. 19 - Which of the following results in the separation...Ch. 19 - Prob. 9TYCh. 19 - Prob. 10TYCh. 19 - What tool is used to determine the probabilities...Ch. 19 - Prob. 12TYCh. 19 - What is the basis for the tremendous genetic...Ch. 19 - Prob. 14TYCh. 19 -
15. Which of the following events or processes...Ch. 19 -
1. What fraction of the offspring of two...Ch. 19 -
2. Why is it that the range of resting blood...Ch. 19 - Prob. 3AWKCh. 19 - Geneticists often study patterns of gene transfer...Ch. 19 - Prob. 5AWKCh. 19 - Prob. 6AWKCh. 19 - Nondisjunction during meiosis can lead to the...
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- A patient has mental deficiency, a short stature, and the mongolian type of the eyelid fold. The microscopical examination of the patient's karyotype revealed the presence of trisomy on the 21-st chromosome. What do we call the disease which is caused by this chromosomal abnormality? Select one: a. Down's syndrome. b. Klinefelter's syndrome. O c. Turner's syndrome. d. Edward's syndrome. e. Patau syndrome.arrow_forwardGiven the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the phenotype of this individual be?arrow_forwardPart of the karyotype of a diploid individual who is heterozygous for one chromosomal rearrangement is shown in the diagram. The chromosomes involved in the rearrangement, and their homologous pair, are shown. The location of each gene is labeled using horizontal lines and the name of each gene is labeled using letters or numbers. Answer the following questions about the diagram. A. What rearrangement is shown? Be as specific as possible. B. Describe a mutation scenario that could cause this rearrangement to be formed. A B D E F G H IXI A B с D E IIXDD 1 2 3 4 5 6 F G H D 1 2 34 5 6 Xarrow_forward
- a. What is the diploid number of chromosomes for a human? b. What is the haploid number of chromosomes for a human? Which cells are considered diploid, gametes or somatic cells? C. d. Which cells are considered haploid, gametes or somatic cells?arrow_forwardIn a karyotype of a man whose wife has had several miscarriages, it was discovered that he had onlv 45 chromosomes. However, he displayed no obvious phenotypic defects. Furthermore, one of the chromosomes of pair 15 was abnormally long. Which of the following terms best describes the condition of this man? a. monosomy b,. trisomy c. tetrasomy d. translocation carrier e. edward syndormearrow_forwardA. Identify the genotypes of the male and female used in cross 2. B. Identify the cross in which the female parent was most likely heterozygous. C. Explain how the results exclude the possibility that the trait is encoded by a mitochondrial gene.arrow_forward
- What is Patient C's karyotype? A. Last song syndrome B. Trisomy 21 C. Marfan syndrome D. Patau syndromearrow_forward1. The figure below represents a karyotype performed on a somatic cell of an unknown organism. Answer the following questions using the figure. a. Circle (and label) 3 different sets of homologous chromosomes? b. This individual is heterozygote for gene A (Aa), Homozygote recessive for gene B (bb) and gene homozygote dominant for gene c (CC). Also, gene B and gene C are linked. Using the homologous chromosomes you circled in part a), provide a representation of the location of the A, B and C, genes and alleles on the homologous chromosomes and sister chromatids in such a way that is consistent with the scenario described above in part b). Choose the chromosomes of your liking to show an appropriate representation. TMIID IL MIarrow_forwardWhat is the chromosome number of the individual? Based from the karyotype, identify the name of the genetic condition of the individual. List down two (2) distinctive characteristics of the affected individual.arrow_forward
- In this image of the human karyotype: A. The sister chromatids have separated B. There are 46 pairs of chromosomes C. The DNA has already been replicated D. There are 23 pairs of autosomes E. None are true.arrow_forward3) A. How are the following proteins involved in cell division: condensing, cohesin, kinetochore complex, tubulin? B. Why does phenotype not always reveal genotype? C. How can Mendel's postulates of segregation and independent assortment be explained by meiosis? D. Explain the genotypic and phenotypic ratios predicted when performing a monohybrid and a dihybrid cross of heterozygotes? E. How can you use the product rule and sum rule to calculate the probability of a particular genotype resulting from crossing parents of specific genotypes?arrow_forwardAnalyze the karyotype shown. Indicate if it is a chromosomal male or achromosomal female. If the karyotype is normal, write the word normal under name or description. If the karyotype is abnormal, name or describethe disorder.arrow_forward
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