A type of red-green colorblindness is inherited recessively on the X chromosome. A woman who is a carrier had children with a male that is not affected by the disease. Show your answers with the use of a Punnett square • What is the probability (% or likelihood) that a child is affected by the disease? • What is the probability (% or likelihood) that a son is a carrier? (Careful!) • Is there a chance that a girl of the couple is affected by the disease?

A type of red-green colorblindness is inherited recessively on the X chromosome. A woman who is a carrier had children with a male that is not affected by the disease. Show your answers with the use of a Punnett square • What is the probability (% or likelihood) that a child is affected by the disease? • What is the probability (% or likelihood) that a son is a carrier? (Careful!) • Is there a chance that a girl of the couple is affected by the disease?

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Description: A type of red-green colorblindness is inherited recessively on the X chromosome. A woman who is a carrier had children with a male that is not affected by the disease. Show your answers with the use of a Punnett square• What is the probability (% or

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter18: Genetics Of Behavior

Section: Chapter Questions

Problem 14QP: A pedigree analysis was performed on the family of a man with schizophrenia. Based on the known...

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Please answer all of them, they are all connected. PEDIGREE ANALYSIS and SYMBOLOGY: Examine the pedigree which has X linked Dominant inheritance of disorder. Use letter X* (asterisk denotes disorder) as genotype of the individuals which can be XX, XY, X*X*, X*X and X*Y. a. What is the genotype of IV-6? b. What is the genotype of III-6? c. What is the genotype of II-3? d. What is the genotype of III-8? e. If couple I-1 and I-2 will have a son, what is the probability of having the disorder? f. If couple III-8 and III-9 will have another child, what is the probability of having the disorder? g. Theoretically, if individual IV-3 and individual IV-5 will marry and will have a child, what is the probability of having a child without the X-linked disorder?
Homozygous mice are better able to adapt to their environment. O Heterozygous mice live shorter lives since they do not have the lethal allele. Is it possible to determine the genotype of an individual expressing a dominant phenotype? Provide evidence to support your claim * Provide at least 3 COMPLETE SENTENCES Your answer This is a required question Is it possible to determine the genotype of an individual expressing a recessive phenotype? Provide evidence to support your claim Provide at least 3 COMPLETE SENTENCES a phenotype is a personality's noticeable traits. Eye color, height and, evident. The genetic contribution to the constitution is named the genotype, So basically phenotypes are on the surfacel Yes it is possible
A man with hemophilia (X-linked recessive) has two kids: a girl who has a normal phenotype, and a boy who has hemophilia. What is the genotype of the man? What is the genotype of the boy? From which parent did the boy get his X-chromosome? What is the genotype of the girl? • What must be the genotype of their mother? If this same man and woman have more children, what are the chances that a son will be affected?
| 3 4 |IL 1 I Section 5: Trihybrid cross and Laws of probability For a trihybrid cross, in which inheritance of alleles for three genes is tracked, drawing a Punnett square that combines all three genes may not be practical. Instead the laws of probability may be used. The product law of probabilities says that when alleles for separate genes segregate independently, we can figure out the probability of a particular combined genotype by multiplying the probability of the alleles for each gene. 13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwarf pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellow, round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants? b. What are the expected F2 ratios (use fractions) of yellow and green seeds? C. What are the expected F2 ratios (use fractions) of round and wrinkled seeds? d. What are the possible F2 combined phenotypes and their expected ratios…
What percentage of all children will be carriers? What is the sex of the carriers? 2. A heterozygous woman carrying the recessive gene for hemophilia marries a man who is not a hemophiliac. Assume the dominant gene is X" and the recessive gene is X". The woman's genotype is X"X", and her husband's genotype is X"Y. What is the potential percentage and sex of their offspring who will be hemophiliacs? % males; % females 100 What percentage can be expected to lack the allele for hemophilia? What is the anticipated sex and percentage of individuals who will be carriers for hemophilia? 2014 sex %,
The allele for color-blindness is carried on the X chromosome. Making color blindness (a recessive trait) an X - linked trait. A colorblind make and a carrier female for color blindness. (But is not colorblind herself) have a child. Show your work! A) what is the % chance that their son will be color blind? B) what is the % chance that their daughter will be color blind?
A woman who has normal vision and is heterozygous for colour blindness has children with a man who is colour blind. What is the expected ratio of genotypes among their children? X° X° :X° X° : X° Y: X° y 1 : 1: 1 : 1 xC xC :X° Y : XC Y : 1: 2 : 1 XC x° : XC Y : XC Y 1: 1 XC xC :XC x° : XC Y 1: 1 : 2
DUCHENNE MUSCULAR DYSTROPHY IS AN X-LINKED RECESSIVE TRAIT THAT CAUSES PROGRESSIVE MUSCLE WASTING. BEFORE 1970, OVER 85% OF AFFECTED INDIVIDUALS DIED BEFORE THE AGE OF 25. IN THE SPACE BELOW, ANSWER THESE TWO QUESTIONS: • WHY IS IT VERY RARE (8%, LESS THAN EXPECTED FOR AN X-LINKED RECESSIVE TRAIT) TO FIND FEMALES AFFECTED BY THIS DISORDER? • A WOMAN WHOSE BROTHER HAS THIS DISEASE WISHES TO HAVE CHILDREN. ASSUME EVERYONE ELSE IN THIS FAMILY IS UNAFFECTED. WHAT IS THE PROBABILITY THAT SHE WILL PASS THIS TRAIT ON TO A SON? (HINT: WHAT IS THE PROBABILITY SHE IS A CARRIER AND PASSES HER AFFECTED ALLELE?)
Hemophilia, disease in which the blood lacks a clotting factor, is caused by an X linked recessive gene. Joe doe not have hemophilia and Lucille is heterozygous for the condition. What is the chance that their MALE child will have hemophilia? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?) 0% 1/4 or 25% 2/4 or 50% 3/4 or 75% 4/4 or 100%
Dimples (D) are a dominant trait genetic trait. Complete a Punnett Square to determine the possible phenotypes and genotypes of a cross between a man who is homozygous dominant and a heterozygous woman. Choose the percentages correctly below. Dimples: 0% 25% 50% 75% 100% No dimples: 0% 25% 50% 75% 100% DD: 0% 25% 50% 75% 100% Dd: 0% 25% 50% 75% 100% dd: 0% 25% 50% 75% 100%
Match the non-Mendelian genetic terms with their descriptor. Genetic and environmental factors collectively influence a phenotypic expression 1. Pleiotropy Two or more genes have a cumulative effect on a 2. Epitasis single phenotype 3. Polygenic Inheritance A single gene has more than one phenotypic effect 4. Multifactorial Effect A gene at one locus has an effect on a gene at another locus
A couple contemplating a pregnancy are in today for an appointment at a genetic counselling clinic to identify and interpret their risk of an inherited disorder. The nurse explains during teaching that all the following are characteristic features of fragile X chromosome of a 3-year-old male child EXCEPT: a. Macroorchidism b. Autistic behavior c. Intellectual disability d. Characteristic facial features e. Hyperextensible finger joints