is heterozygous for gene brown eyeS. dom brow igmentation, while b is recessive allele for blue pigmentation. The woman has a patch of blue color in her left eye. Give THREE (3) reasons how this might occur.
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A: Answer is dominant gene
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A: Polygenic inheritance is controlled by more than one genes.
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Q: Review the process of autosomal dominant inheritance by coloring the following figures. In this…
A: According to the question, we have to review the process of autosomal dominant inheritance by…
Q: A gene is termed when two copics are needed for the trait to be expressed dominant genomic recessive…
A: Dominant alleles express dominant traits and recessive alleles express recessive trait.
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A: Genotype is the alleles carried on the chromosomes that are responsible for a given trait. Phenotype…
Q: HgA HgB HgA HgB
A: Principles of Mendelian genetics are proposed by Gregor Mendel in 1865 and 1866. He designed his…
Q: Example: Eye shape Almond-shaped eyes (A) are dominant to round eyes (a). One parent is homozygous…
A: Homozygous and heterozygous are used to describe allele pairs. Homozygous means that the parent…
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A: According to the guidelines we have to answer first 1-2 question rest you can ask separately thank…
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A: Introduction Genes are responsible for the inheritance of characteristics, it is the basic physical…
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A: Ans- IA iO and IB io
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Q: How to determine unknown genotype
A: The genetic constitution of an organism for a particular trait is known as its genotype.
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A: The autosomal recessive is one of the ways to pass down the trait into generations or families. The…
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A:
Q: Dierentiate between the following: a)dominant and recessive b)gene and allele c)homozygous and…
A: Genetics is the study of genes and heredity in general.
Q: State Mendel's second law of inheritance and explain with help of suitable example.
A: Inheritance is a process through with hereditary characters pass from parents to the offsprings,…
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A: The ABO blood group system is an example of multiple alleles. There are four types of blood groups;…
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A: Incomplete dominance is when a dominant allele, does not completely mask the effects of a recessive…
Q: Rr female Rr male
A: It is given that R allele encodes normal phenotype. It is dominant over r allele. RR and Rr encode…
Q: state mendel's law and explain its significance
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A: Genes are the fundamental sequence coding for a protein. It is a triplet codon. Genes are a part of…
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A: In the human genome, linkage disequilibrium (LD) is a random gathering of alleles at a specific…
Q: Genotype Heterozygous Phenotype Homozygous dominant Homozygous recessive drag and drop answer here…
A: A genotype is an organism's genetic traits. A phenotype is a collection of physical characteristics.
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A: In humans, sex is determined by the presence of Y chromosome. Males have XY sex chromosomes whereas…
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A: Color blindness or color vision deficiency is a genetic disease, is a sex-linked disease. A person…
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- Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the phenotype of this individual be?This pedigree traces the inheritance of a rare disease in humans. a. Based on this pedigree, is the allele for this disease dominant or recessive? Explain. b. What genotypes are possible for the individuals labeled 1, 2, and 3?Glucose-6-phosphate dehydrogenase (G6PD) deficiency is a disorder that affects the normal function of red blood cells and can eventually lead to anemia. The trait is controlled by a recessive allele found on the X chromosome. An affected son was born to a man and woman who were unaffected. The woman’s mother was affected while the father was normal. a. Indicate the gene notation. b. Give the genotypes of the affected boy’s parents. c. Derive the genotypic and phenotypic ratios for the offspring. Show and label your solutions properly. d. What is the probability that they will have a phenotypically normal daughter as their first child? e. If they have four children, what is the probability that three out of their four children will be normal and one will be affected?
- Anhidrotic ectodermal dysplasia is an X-linked recessive disorder in humans characterized by small teeth, no sweat glands, and sparse body hair. This trait is usually seen in men, but women who are heterozygous carriers of the trait often have irregular patches of skin with few or no sweat glands (see the illustration below). a. Explain why women who are heterozygous carriers of a recessive gene for anhidrotic ectodermal dysplasia have irregular patches of skin lacking sweat glands. b. Why does the distribution of the patches of skin lacking sweat glands differ among the females depicted in the illustration, even between the identical twins?The pedigree shows inheritance of an autosomal recessive disease in an extended family. Assume unrelated individuals marrying into the family do not carry the disease, unless there is reason to believe otherwise. What is the chance that IV-3 and IV-4 will have a child with the disease? Individuals I-1, Il-5, III-5 and III-16 have the disease. 2 1 7. III-18 2 3 5 6 17 8. 9 10 11 12 13 14 15 16 17 III-19 IV IV-3 IV-4 IV-5 IV-6 IV-1 IV-2 O a. 1/8 b. 1/12 C. 1/16 d. 3/16 e. 1/24 f. 1/32 g. 3/32 h. 1/64 FEB 17 MacBook Air 6, ... 5. %DIn man, muscular dystrophy is a condition in which the muscles waste away during early life and may result in a shorter life expectancy. It is due to a sex-linked, recessive gene. A certain couple has five children – three boys (ages 1yr, 3yrs, and 10yrs old) and two girls (ages 5yrs and 7yrs old). The oldest boy shows the symptoms of this disease. You are their family physician and they come to you for advice. What would you tell them about the chances of their other children developing the disease?
- Take the example of B-thalassemia, an autosomal recessive genetic disease that particularly affects people from around the Mediterranean. This disease is associated with an anomaly of hemoglobin, a protein essential for the transport of oxygen, which is composed of four chains: two alpha (a) and two beta (B). In case of B-thalassemia, the ẞ chains are produced in insufficient or no quantity in an individual homozygous recessive resulting in insufficient production of overall hemoglobin leading to anemia and other physiological challenges. The gene that controls the synthesis of the ẞ chains is located on chromosome 11. Here is part of the coding portion of this gene (which controls a total of 146 amino acids and of which you only see the portion 36 to 41) and one of the targeted mutations: 1. Give the sequence of amino acids from the template and mutated strands. 2. What type of point mutation is it? 3. Using the principles of the theory of evolution, explain briefly and generally why…In pigs, erect ears is dominant (E) to drooping ears (e). The gene for ear position is autosomal. A farmer performs a test cross on an erect eared sow (female pig). Explain the purpose of a test cross and describe the other individual involved in the cross.Construct pedigree charts using the inheritance of hemophilia in figure 92 (page 113). This is X-linked inheritance so you are required to label XX for females and XY for males. The gene responsible for the trait is represented by the superscript which should be specified in the legend.
- Two autosomal mutations include albinism and dwarfism. Albinism (a) is recessive, and dwarfism (D) is dominant. Complete a dihybrid cross of two people that are heterozygous for normal pigmented skin. One person is normal height and has no genetic trace of dwarfism in the family. The other person has dwarfism but has a mother who is normal height. 21. Complete a full dihybrid Punnett square (6pts).Glucose-6-phosphate dehydrogenase (G6PD) deficiency is a disorder that affects the normal function of red blood cells and can eventually lead to anemia. The trait is controlled by a recessive allele found on 4. the X chromosome. An affected son was born to a man and woman who were unaffected. The woman's mother was affected while the father was normal. a. Indicate the gene notation. b. Give the genotypes of the affected boy's parents. Derive the genotypic and phenotypic ratios for the offspring. Show and label your solutions properly. What is the probability that they will have a phenotypically normal daughter as their first child? C. d.With regard to the T and t alleles, explain what the wordsegregation means.