What term is defined as one of more versions of a gene that results in a slightly different trait? (Ex. the different versions that control if a pea plant is tall or short) phenotype chromosome homozygous O allele
Q: Consider a cross between a true breeding purple flowered pea plant (genotype PP) and a true breeding…
A: Phenotype is the external appearance of an organism.
Q: Consider the following cross examining four gene in two parental line: Parent 1: A/a; B/B; D/d; E/e…
A: Phenotype Phenotype is the physical visible characteristic which is expressed by the the gene of an…
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A: Since you have posted a question with multiple questions, we will solve the first question for you.…
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A: Alleles Alleles are the genes located on the loci of chromosomes. These alleles are present in…
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A:
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A: Deletion is a type of Chromosomal aberration in which there is loss of segment of a chromosome.In…
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A: option (b) 1,2,3 have dark leaves.
Q: and Wrinkled seeds are recessive phenotypes. You cross a breeding male plant with constricted pods…
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A: As per our guidelines, we are supposed to answer only three sub-parts. Kindly repost the question…
Q: Consider the following cross examining four gene in two parental lines: Parent 1: A/a; B/b; D/d; e/e…
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A: Genetics is the scientific investigation of genes. Our genes contain information that is transmitted…
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A: Introduction Mendel's law of independent assortment states that the alleles of two (or more)…
Q: A species of centipede has a haploid chromosome number of 2. Leg length is controlled by a single…
A: Mendel's law of independent assortment states that the alleles of two (or more) different genes get…
Q: Draw a Punnett square for the dihybrid cross. There are two known alleles of gene occupying a…
A: Dihybrid cross involves two genes in a cross. That's why the two traits are involved in this cross.
Q: What does codominance mean in genetics? Select one: O a. Both alleles are expressed only when they…
A: Codominance in genetics refers to a situation where the two alleles are expressed in the phenotype…
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A: A gene is present in different forms that are expressed in a phenotype; allele is a one of the…
Q: Consider the following cross examining four gene in two parental line: Parent 1: A/a; B/B; D/d; E/e…
A: This is a tetrahybrid cross, meaning a cross involving study of four different genes. The number of…
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A: Genetic Map: A genetic map, also referred to as a linkage map, illustrates the relative positions of…
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A: A test cross is when the f1 hybrid is crossed with its homozygous recessive parent.
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A: Heterozygous is the condition of having different or contrasting allele for the same gene which mean…
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A: Genetic mapping is used to determine the linear order of genes as well as the relative distance…
Q: The result of a test cross of a yeast cell that is heterozygous for three genes are summarized in…
A: A gene is the structural and functional unit of heredity. A gene exists as two alternative forms…
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A: The genes in the DNA code for a specific trait. Each gene has two alternative forms called alleles…
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A: Alleles are the alternative form of gene that are located on the same locus of homologous chromosome…
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A: Albinism is a category of hereditary disease in which the body produces little or no melanin. Skin…
Q: Mutation
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A: Some genes are independent and some affect other genes.
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A: The correct term is "gene locus" or "gene location." A gene locus refers to the specific position or…
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A: A mutation is a change in the DNA sequence of a gene or chromosome within an organism. Mutations can…
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A: Antirrhinum is a genus of plants which is commonly known as dragon flowers or snapdragons. It is…
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A: The objective of the question is to determine the most likely location of the gene for red eye color…
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A: Purple flower (PP) =dominant White flower (pp)= recessive Sort plants (SS) = dominant Tall plants…
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- Genetics 181 Rule of Incomplete Dominance When two different pure-breeding strains are crossed, and their offspring show a blending of phenotypes, then neither allele is dominant. This is easily recognized when the phenotype is somewhere between two extremes. Counting the parents, there are three phenotypes (black, white, grey) being expressed in these flowers instead of only two, and that third phenotype is intermediate between the other two. This heterozygous condition is called incomplete dominance. 1. On the chart you did earlier, which of the three hair types (wavy, curly, or straight) represents incomplete dominance-the blended heterozygous condition? 2. You cross a herd of red cattle with white cattle and all of the calves appear to be roan (reddish white). Is this an example of incomplete dominance? How do you know? 3. You cross a blue flowering pea plant with a white flowering pea plant and all of the offspring are blue flowered. Is this an example of incomplete dominance? How…In one of his experiments, Mendel crossed homozygous yellow plants with homozygous green plants. The resulting F1 generation was allowed to self-fertilize. The F2 generation produced 930 yellow seeds and 305 green seeds. What are the genotypes of this F2 generation? O YY : yy O Yy : yy O Yy: yy O YY: Yy : yyIn Drosophila, females heterozygous for the recessive alleles c, d, and e were crossed to males homozygous recessive for these three mutant genes. The phenotypes of the resulting progeny were: cd+ 350 ++e 350 c + e 51 + d + 49 c + + 100 + d e 100 _________ _____ Total progeny 1000 How were the three pairs of alleles arranged in the heterozygous females? a. +d+/c+e B. cde/+++ C. +de/c++ D. cd+/++e
- The image below shows a standard human karyotype, from a metaphase cell. Note that the positioning of the chromosomes in the image is to aid visualization; they are not lined up this way in the cell. Вох 1 Вох 2 5 器 1 88 9 10 11 12 13 14 15 16 17 18 19 20 21 22 2012 Pearson Education, he If this individual is heterozygous for a gene on chromosome 1, with alleles A and a, what alleles could be represented in the chromosomes in Box 1? Select all that are correct. Assume that the image represents a mitotic cell. a. A only b. a only c. Both A and aIn Drosophila, a gene controls body color producing either normal body color or the mutant form black body color (bl. A second gene controls wings. The flies either have normal wings or are wingless (wn). A cross is made between a homozygous wild type fly and fly with black body and wingless. A test cross was then performed. The following progeny was observed: Phenotype # Observed Wild Type 405 Normal, wingless 85 Black, normal 100 Black, wingless 410 A. List the genotypes of the original parents. B. List the genotypes of the testcross. C. Are these two genes linked? How do you know? Edit Format Table 12pt v Paragraph v BIUAWith three-point genetic mapping, we can look at the inheritance of three linked genes and determine their order and map distance relative to each other on the chromosome. Suppose Gene G, Gene J, and Gene M are linked. An organism with the genotype GgJjMm was mated to an organism with the genotype ggjmm. The following phenotypes were seen in the offspring: Dominant for all three 13 Dominant for G and J Dominant for G and M 84 Dominant for J and M 389 Dominant for G only 401 Dominant for J only 96 Dominant for M only Recessive for all three 12 a. What the alleles in the parental gametes? b. What are the alleles in the double crossover gametes? c. What gene is in the middle of the three? d. What is the map distance between Gene G and Gene J? (Show all your work.) е. What is the map distance between Gene J and Gene M? (Show all your work.)
- Match the term with the correct definition or example Product of a cross between true breeding plants that make yellow peas and true breeding plants that make green peas. A description of the alleles present in an individual at one or more loci. Example: MM or Mm or mm. Example: 11q1. 4-q2. 1", meaning it is on the long arm of chromosome 11, somewhere in the range from sub-band 4 of region 1 to sub-band 1 of region 2. Under a microscope, these look exactly the same. The centromere, banding, long arm, short arm, overall length, gene locations, and order of genes are exactly the same. However, nucleotide sequences in genes on the two chromosomes can differ. the unit of heredity, the sequence of nucleotides in the exon regions specifies the sequence of amino acids in a particular polypeptide Brown allele in eye color Red eye in fruit flies Ability to synthesize alcohol dehydrogenase in fruit flies…In 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 fatherPigment produced in cells which are located at the base of growing hairs is packedinto granules which are then transferred to the growing hair shaft. The gene controllingthis transfer of pigment granules to growing hair has the alternative allelesD : uniform distribution of pigment granules in hair ---- intense colourd : uneven distribution of pigment granules in hair -------dilute colourThe colour of cats homozygous dd, is diluted as shown below non dilute dilute black dd blue brown dd lavender orange dd cream The colour of cats either DD or Dd is intense, or non-dilute. Note that alternativenames for colours are sometimes used. Seal for black, grey for blue, chocolate forbrown, lilac for lavender and red or yellow for orange. Genetically, there is nodifference between the particular alternatives.Examine poster 4 – cats. a. What is the genotype, with respect to the ‘B’ and ‘D’ loci of blue point kitten, lavender point kitten and brown point kittenb. What is the genotype…
- . In corn, three dominant alleles, called A, C, and R,must be present to produce colored seeds. GenotypeA/− ; C/− ; R/− is colored; all others are colorless.A colored plant is crossed with three tester plants ofknown genotype. With tester a/a ; c/c ; R/R, the coloredplant produces 50 percent colored seeds; with a/a ;C/C ; r/r, it produces 25 percent colored; and withA/A ; c/c ; r/r, it produces 50 percent colored. What isthe genotype of the colored plant?Consider the following cross examining four gene in two parental line: Parent 1: A/a; B/B; D/d; E/e Parent 2: A/a; B/b; d/d; e/e Assuming independent assortment for the four genes, what fraction of progeny will be phenotypically identical to either parent 1 or parent 2? (Hint: first figure out the fraction of progeny that resembles parent 1 and parent 2 separately, then get the overall fraction.) 9/16 1/16 3/4 3/8 3/16In Drosophila, the allele for long legs (sl*) is wild-type and the allele for short legs (sl) is mutant. The allele for gray body color (b*) is wild-type and the allele for black body color (b') is mutant. The loci for leg length and body color are linked. Flies with sl*sl* b*b* genotypes are mated with flies that have sl s bb genotypes. A testcross was then performed in which the F, offspring with sl*sl b*b genotypes were mated with flies with sl sl. b'b genotypes. The phenotypes of 1000 offspring were recorded. There were 470 flies with long legs and grey body, 30 flies with long legs and black body, 30 flies with short legs and grey body, and 470 flies with short legs and black body. Which of these phenotypes are parental phenotypes? VWhich of these phenotypes are recombinant phenotypes? What is the distance between these two gene loci in centiMorgans (map units)?