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- Which one of the following entries does not describe the relationship between homologous chromosomes? Contain the same genes, but may be different alleles Contain identical alleles of the same genes Inherit one homologous chromosome from mother, inherit one homologous chromosome from father. Very similar at the DNA sequence levelAlleles are ___________. a. alternate forms of a gene b. different molecular forms of a chromosome c. always homozygous d. always heterozygousA proband female with an unidentified disease seeks the advice of a genetic counselor before starting a family. Based on the following data, the counselor constructs a pedigree encompassing three generations: (1) The maternal grandfather of the proband has the disease. (2) The mother of the proband is unaffected and is the youngest of five children, the three oldest being male. (3) The proband has an affected older sister, but the youngest siblings are unaffected twins (boy and girl). (4) All the individuals who have the disease have been revealed. Duplicate the counselors feat
- Variations in genomic sequence across multiple positions (such as different substitutions) that occur together in an individual are grouped as: Group of answer choices CNVs SNPs Genetic Maps HaplotypesTo understand this research, you must be familiar with some basic genetic terminology. Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used. dominant allele phenotype The possession of two different alleles of a particular gene is referred to as Reset Help A variation in a DNA sequence at one particular position is called a heterozygosity genotype recessive allele homozygosity single nucleotide polymorphism The appearance of the organism, its observable traits, are referred to as the A variant of a gene for which an individual must be homozygous in order for it to influence the appearance of the organism is a The set of alleles an organism has for a particular trait is the organism's Submit Request AnswerWhich of these terms is correctly matched with its definition?a. autosome—an X or a Y chromosomeb. phenotype—the genetic makeup of an individualc. allele—variant form of a gene occupying locus on a homologouschromosomed. heterozygous—having two identical genes for a traite. recessive—a trait expressed when the genes are heterozygous
- Which of the following describes a linkage group? All the genes on a chromosome An individual who has two identical alleles at the same locus on homologous chromosomes An individual who is heterozygous for a given gene A particular location on a chromosomeWhich of the following is defined as an individual’s observable traits? Allele Phenotype Genotype Gene***18. Complete this flowchart to show how different alleles can result in different characteristics. In the DNA, different alleles of a gene have a different sequence of > different sequence of transcription > different sequence of in a protein translation > different structure and function of the protein (e.g. normal enzyme vs. defective enzyme) > different characteristics (e.g. normal color vs. albino) in
- Which of the following best describes a locus? It is a recessive gene It is an unmatched chromosome It is the location of an allele on a chromosome It is a dominant geneIn humans, as well as in many other animals and some plants, the sex of the individual is determined by sex chromosomes. The sex chromosomes are one pair of non-homologous chromosomes: XX represents a female, while XY represents a male. When a gene for a specific trait Is attached to the X or Y chromosome, we say it is sex-linked, and when it is attached to the X chromosome, we say it is X-linked. Alleles for these linked traits, such as hemophilia or color blindness, crosses, may be recessive or dominant. This is one possible cross (above) for the X-linked condition known as hemophilia. Which pair of parents is most likely to have a hemophiliac daughter? A) carrier mother and unaffected father B) carrier mother and hemophiliac father hemophiliac mother and a carrier father D) unaffected, non-carrier mother and hemophiliac fatherWhat type of phenotypic effects might you expect from a large chromosome deficiency (deletion) that occurs in the cells of the lungs of an adult? Semisterility such that approximately half of a persons pregnancies end prematurely in a miscarriage Some type of lung disease such as lung cancer Developmental abnormalities such as Cri du chat syndrome that affects many traits Offspring with developmental abnormalities such as Patau syndrome that affects many of their traits.
