Question

Two
normal parents have a child with cystic fibrosis. Would this be an
autosomal dominant or autosomal recessive disorder? What is the
chance that their next child will have cyatic fibrosis?

Answer #1

Cystic fibrosis is an autosomal recessive disorder that damages the lung and digestive system. This disease is inherited when the offspring recieves the gene for cystic fibrosis from both the parents means it occurs when gene for cystic fibrosis occurs in homozygous (recessive) condition. Cystic fibrosis affects the cells that produce mucus, sweats and digestive juices and thickens the secretion and thus block the tubes, ducts and passages.

There will be 25% chance that their next child will have cystic fibrosis.

Both parents are normal heterozygous because their first child has cystic fibrosis. If both or single parent were homozygous (dominant) normal, then their first child would not have cystic fibrosis.

Aa/Aa | A | a |

A | AA | Aa |

a | Aa | aa (cystic fibrosis) |

Cystic fibrosis is an autosomal recessive disorder. Beth and Tom
do not have cystic fibrosis but each have a sibling with cystic
fibrosis. Beth's parents and Tom's mother do not have the disease.,
but Tom's father does. Calculate the probability that if this
couple has a child, the child will NOT have cystic fibrosis.

A phenotypically normal couple has had one normal child and a
child with cystic fibrosis, an autosomal recessive
disease. The incidence of cystic fibrosis in the
population from which this couple came is 1/500. If
their normal child eventually marries a phenotypically normal
person from the same population, what is the risk that the
newlyweds will produce a child with cystic fibrosis?

Cystic fibrosis is one of the most common autosomal recessive
disorders. The carrier frequency in a general population is 1/25. A
woman who knows she is heterozygous for the mutation that causes
cystic fibrosis (CF) marries a man with no family history of CF at
all. What is the probability that they will produce a child that
has cystic fibrosis?
Suppose the couple above has a child with cystic fibrosis. What
is the chance that their second child will have...

Cystic fibrosis is one of the most common autosomal recessive
disorders. The carrier frequency in a general population is 1/25. A
woman who knows she is heterozygous for the mutation that causes
cystic fibrosis (CF) marries a man with no family history of CF at
all. What is the probability that they will produce a child that
has cystic fibrosis? Suppose the couple above has a child with
cystic fibrosis. What is the chance that their second child will
have...

Cystic fibrosis is a genetic disease caused by several variants
of a gene. It is autosomal recessive. In other words, an individual
must receive two copies of a cystic fibrosis genetic variant, one
from the father and one from the mother, to manifest the condition.
The probability that a child will be born with cystic fibrosis in
the US is about 0.0004.
a. Assuming independent inheritance from the father and mother,
what is the probability that any given copy of...

Attached earlobe and cystic fibrosis are both autosomal
recessive traits. A woman with attached earlobes, that is a carrier
of cystic fibrosis, marries a man that is genotypically normal for
cystic fibrosis and is a carrier of the attached earlobe trait.
What is the probability that they will have a child with
non-attached earlobes that is a carrier of cystic fibrosis?
A- 1/4
B-1/16
C-1/2
D-3/4

If two normal (disease free) parents each carry the recessive
allele for cystic fibrosis, what is the chance one of their
children could inherit the disease?
Select one:
25% (1 out of 4)
100% (all children)
75% (3 out of 4)
50% (2 out of 4)
No children
Clear my choice
If Woody Guthrie had children with a women with Huntingtons
Disorder, which is true?
Select one:
no children would have it
two out of four children having the disorder...

Question 5
Cystic fibrosis (CF) is a recessive gene disease meaning that a
child has to inherit a defective CF gene from each parent. This
means that there is a 25% chance of a child having cystic fibrosis
if both parents are CF carriers Hence the number of children with
CF (in a family whose parents are CF carriers) has a binomial
distribution with n = the number of children in the family and p=
0.25
i. In a family...

Question 5
Cystic fibrosis (CF) is a recessive gene disease meaning that a
child has to inherit a defective CF gene from each parent. This
means that there is a 25% chance of a child having cystic fibrosis
if both parents are CF carriers Hence the number of children with
CF (in a family whose parents are CF carriers) has a binomial
distribution with n = the number of children in the family and p=
0.25
i. In a family...

Cystic fibrosis (CF) is a genetic disorder that affects mostly
the lungs, but also the pancreas, liver, kidneys, and intestine. CF
is inherited in an autosomal recessive manner with simple Mendelian
inheritance. It is caused by the presence of mutations in the gene
for the cystic fibrosis transmembrane conductance regulator (CFTR)
protein.
A normal couple intends to have children but consult a genetic
counselor because the man has a sister with CF and the woman has a
brother with CF....

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 7 minutes ago

asked 27 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 4 hours ago