Activity 1Write down the correct biological term for each of the following descriptions in the space provided.DESCRIPTIONTERM1.1A cross involving a single characteristic1.2A cross involving two characteristicsA representation that traces the transmission of a characteristic over manygenerations of a familyAllele that influences the phenotype only when in the homozygouscombination but not in the heterozygous condition1.31.41.5Allele that influences the phenotype whether in the homozygous orheterozygous combination1.6Alternative forms of a gene found at the same locus1.7Characteristics controlled by alleles of a gene that are located on the sexchromosomesCross involving alleles of a gene that are equally dominant, leading to a thirdphenotype which is a combination of the other two phenotypes1.81.9Cross involving alleles that are neither dominant or recessive, leading to anintermediate phenotype1.10Cross involving characteristics controlled by dominant and recessive alleles1.11Disorder caused by a point mutation leading to abnormally shaped red bloodcells1.12Disorder caused by the presence of an extra copy of chromosome number211.13Genetic disorder characterised by the non-production of the pigmentmelanin1.14Individual with two copies of the same allele for a particular characteristic1.15Individual with two different alleles for a particular characteristic found atthe same locus1.16 Manipulation of the genotype of organisms to produce desirablecharacteristics1.17More than two alleles at the same locus influence a single characteristic1.18 Segment of a chromosome that codes for a particular proteinSex-linked disorder characterised by the absence of clotting factors1.191.20Sudden change in the structure of a gene1.21Tangled network of chromosomes located within the nucleus1.22The alleles of a gene that an individual possesses for a particularcharacteristicThe external appearance of an organismThe movement of alleles for a characteristic into different gametesindependently of the alleles for other characteristics1.231.24í gonetically identical offspring, using biotechnologyu organism

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Biology

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Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter19: Introduction To Genetics

Section: Chapter Questions

Problem 9CT

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Consider the following pedigree. 하 3 10 (5 3 2 (a) What pattern of transmission is most consistent with this pedigree? (1) autosomal recessive, (2) autosomal dominant, (3) X-linked recessive, (4) X-linked dominant. (b) If individual V-2 marries a normal individual, and if the condition has a pene-trance of 85 percent, what is the probability that their second child will express the trait? (c) On the third line, what does the diamond with a 10 in the middle mean?
BIU A- == 三E 12 - Match each of the following examples to the appropriate type of non-Mendelian inheritance. 1. A homozygous recessive genotype for the gene that encodes phenylalanine hydroxylase (which breaks down the amino acid phenylalanine) causes lighter skin color, a musty odor, differences in intellectual development, and seizures. 2. In pea plants, alleles of Gene W control flower color, with the dominant allele (W) leading to purple flower.color, and the recessive allele (w) leading to white flower color. Usually, a genotype of WW or Ww leads to purple flowers. However, when Gene C is homozygous recessive, WW or Ww plants always have white flowers. 3. In mallard ducks, feather coloring is controlled by Gene F. A dominant allele (F) leads to green head feathers, while a recessive allele (f) leads to brown head feathers. In male mallards, inheritance of one or more F alleles always leads to the green head feather trait. But female mallards always have brown head feathers,…
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Many genetic disorders exhibit locus heterogeneity. Define andgive two examples of locus heterogeneity. How does locus heterogeneityconfound a pedigree analysis?
Concordance studies of twins for a neurodegenerative disorder show MZ= 46% and DZ= 15%. Further studies have shown a possible link to a gene on chromosome 9, however, there are some individuals in the study who have the allele but do not develop the disorder (group 1), and there are other individuals who do not have the allele yet develop the disorder (group 2). Amita's older sister and maternal uncle have this disorder. Currently, Amita & her 2 younger brothers do not show symptoms. Amita's paternal grandfather was rumored to have this disorder. 1. Draw the pedigree for Amita's family and determine the mode of inheritance if any. 2. Explain how the 2 groups in the study could be possible? 3. What would you tell Amita about the heritability of this disorder?