Q: Describe an individual with the karyotype shown
A: A karyotype is defined as a collection of an individual’s chromosomes. It is also defined as an…
Q: Parents are rr SuSu* RR susu F1 are : draw a punnet square 4 by 4
A: Answer: Punnett square : Punnett square is the square studied in genetics that is used to predict…
Q: is in vitro fertilization a humen disease?
A: In vitro Fertilization (IVF) is a type of Assisted reproductive technology (ART). This implies…
Q: _______ is when the phenotype of the offspring does not reflect its genotype but rather that of the…
A: Genotype refers to the genetic makeup of an individual, including all of the inherited genes that…
Q: John has unattached earlobes (dominant) like his father, but his mother has attached earlobes…
A: Let’s denoted the allele for unattached earlobes as A and allele for attached earlobes as aThe…
Q: What is this type of image called? How are they useful? What disorder does this person have? How can…
A: We know that a chromosome is an organized structure of DNA and protein that is found in nucleus. The…
Q: O Autosomal dominant O Sex linked dominant O Mitochondrial Autosomal recessive
A:
Q: Homozygous dominant
A: Homozygous means same type of alleles. Dominant means with dominant alleles which express.
Q: Type of Inheritance: I Explanation: Punnett Square: II 4 III 1 2 4
A: The mode of inheritance is a pattern of obtaining parentral alleles or genes to the offsprings. The…
Q: ISB 603 Karyotype #5 designation: (hint: this is not a deletion) Genetic condition:
A: Step 1: Step 2: Step 3: Step 4:
Q: humans, Turner's syndrome results in a ["Female", "Male", "Hermaphrodite"]…
A: It is a chromosomal disorder in which a female is born with only one X chromosome. Turner syndrome…
Q: describe the Major Classes of ChromosomalRearrangements
A: Chromosomal rearrangements are the mutations in the chromosomes that alter the structures of…
Q: 5. Rather than studying you are watching Maury. A couple comes on with a baby. The father has brown…
A: The inheritance of characters in the children depend on the characteristics of the parents. This is…
Q: If individuals IV-1 and IV-3 had a child together, what is the probability they will have Bloom…
A: The mode of inheritance of bloom syndrome is an autosomal recessive mode of inheritance. This means…
Q: What is the female version of Turner syndrome?
A: Mendelian disorders like haemophilia, sickle- cell anemia, and phenylketonuria are due to the mutant…
Q: Affected female Affected male O Unaffected female Unaffected male IV III 9999 00000 50000 353 180…
A: The question asks for the repeat length boundaries between normal & premutation and between…
Q: 3 4. 11 12 13 14 15 18 19 21 22 Y 2. 20
A: Karyotyping is the process by which photographs of chromosomes are taken in order to determine the…
Q: A man inherits Duchenne muscular dystrophy, which is a recessive X-linked allele.
A: X-linked recessive traits are caused by the mutations in gene present on the X chromosomes. Males…
Q: How many different kinds of gametes will be expected from an individual with the genotype A/A; B/b;…
A: Observable characteristics are basically represented by phenotype when traits are determined…
Q: What is the phenotype of an individual with the genotype XXXY? female, with an inactivated Y…
A: A normal male has XY phenotype But person with XXXY has a syndrome which characterized by a sex…
Q: Autosomal aneuploidy is usually lethal due to genetic_________
A: Introduction Chromosomal aberrations are the common cause of abnormal development of the embryo or…
Q: BBB BW prenotype 1:2:1 1BB: 2 BW: 1 WW W/BW W/BW WW 1 Black 2 Bluck + I white : Feathers white…
A: 1. Feather Color Inheritance in Birds Feather color in birds is an example of incomplete dominance.…
Q: For an individual with the XXXYY chromosomal composition, the expected number of Barr bodies in…
A: Barr body is an inactivated X-chromosome in female cells in the interphase since they have more than…
Q: What happens if a karyotype test is not normal?
A: Karyotype is a chromosome complement of a cell which provides chromosomal aspects such as number,…
Q: What is the male version of Turner syndrome?
A: Step 1 Turner’s syndrome (44+XO), the individual appears phenotypically females. The effect appears…
Q: Affected female Affected male O Unaffected female Unaffected male 11 IV 40/20 20 80/40 80 OO 180…
A: The question asks for the repeat length boundaries between normal and premutation, and between…
Q: Learning Goal: A STR has 4 alleles: A, B, C, and D. A region of DNA containing the STR was amplified…
A: DNA fingerprinting uses gel electrophoresis to distinguish between samples of the genetic material.…
Q: In 1-3 sentences each define the following terms: penetrance, expressivity, karyotype,
A: Chromosomes are defined as the thread-like structures present inside the nucleus of an individual's…
Q: A woman that is AB Rh+/- marries a man that is BB Rh-/-. In the hospital there is a mix-up in the…
A: The genotype of the woman with AB blood group will be IA+IB- The genotype of the man with AB blood…
what is the parental genotype: female___ x___ male?

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- The ABO blood groups in humans are expressed as the IAlB, and IAalleles. The allele encodes the A blood group antigen, lBencodes B, and i encodes O. Both A and B are dominant to O. If a heterozygous blood type A parent (IAi) and a heterozygous blood type B parent (IBi) mate, one quarter of their offspring will have AB blood type (IAIB) in which both antigens are expressed equally. Therefore, ABO blood groups are an example of: multiple alleles and incomplete dominance codominance and incomplete dominance incomplete dominance only multiple alleles and codominanceEqualizing the Expression of X Chromosome Genes in Males and Females Individuals with an XXY genotype are sterile males. If one X is inactivated early in embryogenesis, the genotype of the individual effectively becomes XY. Why will this individual not develop as a normal male?Marian syndrome (Section 13.5) is inherited in an autosomal dominant pattern. What is the chance that a child will inherit the associated allele if one parent does not carry it and the other is heterozygous?
- The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list all of the possible F1 and F2 genotypes and phenotypes from a cross involving parents that are homozygous for each trait. Express genotypes with conventional genetic abbreviations.A couple was referred for genetic counseling because they wanted to know the chances of having a child with dwarfism. Both the man and the woman had achondroplasia (MIM 100800), the most common form of short-limbed dwarfism. The couple knew that this condition is inherited as an autosomal dominant trait, but they were unsure what kind of physical manifestations a child would have if it inherited both mutant alleles. They were each heterozygous for the FGFR3 (MIM 134934) allele that causes achondroplasia. Normally, the protein encoded by this gene interacts with growth factors outside the cell and receives signals that control growth and development. In achrodroplasia, a mutation alters the activity of the receptor, resulting in a characteristic form of dwarfism. Because both the normal and mutant forms of the FGFR3 protein act before birth, no treatment for achrondroplasia is available. The parents each carry one normal allele and one mutant allele of FGRF3, and they wanted information on their chances of having a homozygous child. The counsellor briefly reviewed the phenotypic features of individuals with achondroplasia. These include facial features (large head with prominent forehead; small, flat nasal bridge; and prominent jaw), very short stature, and shortening of the arms and legs. Physical examination and skeletal X-ray films are used to diagnose this condition. Final adult height is approximately 4 feet. Because achondroplasia is an autosomal dominant condition, a heterozygote has a 1-in-2, or 50%, chance of passing this trait to his or her offspring. However, about 75% of those with achondroplasia have parents of average size who do not carry the mutant allele. In these cases, achondroplasia is due to a new mutation. In the couple being counseled, each individual is heterozygous, and they are at risk for having a homozygous child with two copies of the mutated gene. Infants with homozygous achondroplasia are either stillborn or die shortly after birth. The counselor recommended prenatal diagnosis via ultrasounds at various stages of development. In addition, a DNA test is available to detect the homozygous condition prenatally. What is the chance that this couple will have a child with two copies of the dominant mutant gene? What is the chance that the child will have normal height?A couple was referred for genetic counseling because they wanted to know the chances of having a child with dwarfism. Both the man and the woman had achondroplasia (MIM 100800), the most common form of short-limbed dwarfism. The couple knew that this condition is inherited as an autosomal dominant trait, but they were unsure what kind of physical manifestations a child would have if it inherited both mutant alleles. They were each heterozygous for the FGFR3 (MIM 134934) allele that causes achondroplasia. Normally, the protein encoded by this gene interacts with growth factors outside the cell and receives signals that control growth and development. In achrodroplasia, a mutation alters the activity of the receptor, resulting in a characteristic form of dwarfism. Because both the normal and mutant forms of the FGFR3 protein act before birth, no treatment for achrondroplasia is available. The parents each carry one normal allele and one mutant allele of FGRF3, and they wanted information on their chances of having a homozygous child. The counsellor briefly reviewed the phenotypic features of individuals with achondroplasia. These include facial features (large head with prominent forehead; small, flat nasal bridge; and prominent jaw), very short stature, and shortening of the arms and legs. Physical examination and skeletal X-ray films are used to diagnose this condition. Final adult height is approximately 4 feet. Because achondroplasia is an autosomal dominant condition, a heterozygote has a 1-in-2, or 50%, chance of passing this trait to his or her offspring. However, about 75% of those with achondroplasia have parents of average size who do not carry the mutant allele. In these cases, achondroplasia is due to a new mutation. In the couple being counseled, each individual is heterozygous, and they are at risk for having a homozygous child with two copies of the mutated gene. Infants with homozygous achondroplasia are either stillborn or die shortly after birth. The counselor recommended prenatal diagnosis via ultrasounds at various stages of development. In addition, a DNA test is available to detect the homozygous condition prenatally. Should the parents be concerned about the heterozygous condition as well as the homozygous mutant condition?
- A couple was referred for genetic counseling because they wanted to know the chances of having a child with dwarfism. Both the man and the woman had achondroplasia (MIM 100800), the most common form of short-limbed dwarfism. The couple knew that this condition is inherited as an autosomal dominant trait, but they were unsure what kind of physical manifestations a child would have if it inherited both mutant alleles. They were each heterozygous for the FGFR3 (MIM 134934) allele that causes achondroplasia. Normally, the protein encoded by this gene interacts with growth factors outside the cell and receives signals that control growth and development. In achrodroplasia, a mutation alters the activity of the receptor, resulting in a characteristic form of dwarfism. Because both the normal and mutant forms of the FGFR3 protein act before birth, no treatment for achrondroplasia is available. The parents each carry one normal allele and one mutant allele of FGRF3, and they wanted information on their chances of having a homozygous child. The counsellor briefly reviewed the phenotypic features of individuals with achondroplasia. These include facial features (large head with prominent forehead; small, flat nasal bridge; and prominent jaw), very short stature, and shortening of the arms and legs. Physical examination and skeletal X-ray films are used to diagnose this condition. Final adult height is approximately 4 feet. Because achondroplasia is an autosomal dominant condition, a heterozygote has a 1-in-2, or 50%, chance of passing this trait to his or her offspring. However, about 75% of those with achondroplasia have parents of average size who do not carry the mutant allele. In these cases, achondroplasia is due to a new mutation. In the couple being counseled, each individual is heterozygous, and they are at risk for having a homozygous child with two copies of the mutated gene. Infants with homozygous achondroplasia are either stillborn or die shortly after birth. The counselor recommended prenatal diagnosis via ultrasounds at various stages of development. In addition, a DNA test is available to detect the homozygous condition prenatally. What if the couple wanted prenatal testing so that a normal fetus could be aborted?Equalizing the Expression of X Chromosome Genes in Males and Females Males have only one X chromosome and therefore only one copy of all genes on the X chromosome. Each gene is directly expressed, thus providing the basis of hemizygosity in males. Females have two X chromosomes, but one is always inactivated. Therefore, females, like males, have only one functional copy of all the genes on the X chromosome. Again, each gene must be directly expressed. Why, then, are females not considered hemizygous, and why are they not afflicted with sex-linked recessive diseases as often as males are?A single allele gives rise to the Hbs form of hemoglobin. Individuals who are homozygous for the allele (HbS/HbS) develop sickle-cell anemia (Section 9.6). Heterozygous individuals (HbA/HbS) have few symptoms. A couple who are both heterozygous for the HbS allele plan to have children. For each of the pregnancies, state the probability that they will have a child who is: a. homozygous for the HbS allele b. homozygous for the normal allele (HbA) c. heterozygous: HbA/HbS
- Mutations Can Uncouple chromosomal Sex from Phenotypic Sex Discuss whether the following individuals (1) have male or female gonads, (2) are phenotypically male or female (discuss Wolffian/Mllerian ducts and external genitalia), and (3) are sterile or fertile. a. XY, homozygous for a recessive mutation in the testosterone biosynthetic pathway, producing no testosterone b. XX, heterozygous for a dominant mutation in the testosterone biosynthetic pathway, which causes continuous production of testosterone c. XY, heterozygous for a recessive mutation in the MIH gene d. XY, homozygous fora recessive mutation in the SRY gene that abolishes functionState whether each of the following genetic defects is inherited as an autosomal recessive, autosomal dominant, or X-linked recessive trait: phenylketonuria (PKU), sickle cell anemia, cystic fibrosis, Tay-Sachs disease, Huntingtons disease, and hemophilia A.Marfan syndrome is inherited in an autosomal dominant pattern. Which of the following is true? Female offspring are more Likely to be carriers of the disease. Male offspring are more likely to inherit the disease. Male and female offspring have the same likelihood of inheriting the disease. Female offspring are more likely to inherit the disease.
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