1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zaharov [31]
2 years ago
15

Hemochromatosis is an inherited disease caused by recessive allele. If a woman and her husband, who are both carriers, have thre

e children, what is the probability of all three children having a normal phenotype
Biology
1 answer:
Wittaler [7]2 years ago
8 0

Answer:

27⁄64

Explanation:

A recessive disease is expressed only when an individual carries two copies of the recessive allele (i.e., individuals must be recessive homo-zygous to suffer from the disease). In this case, both parents are carriers for hemochromatosis, i.e., both are heterozygotes carrying the defective allele, thereby the probability of having a child with a normal 'dominant' phenotype is 3/4, i.e., 3/4 individuals are expected to have an A_ genotype (1/2 AA + 1/4 Aa = 3/4), and 1/4 individuals are expected to have an aa genotype (where 'A' is the dominant allele and 'a' is the recessive allele associated with hemochromatosis). In consequence, the probability of having three children with the normal phenotype is 3/4 x 3/4 x 3/4 = 27/64.

You might be interested in
Neurofibrillary tangle in AD are primarily due to mis-folding of what protein?
katen-ka-za [31]

Answer: Tau

Explanation:

NFTs or neurofibrillary tangles are insoluble twisted fibers. The tangles are abnormal accumulation that collect inside neurons. Their presence is also found in other diseases such as tauopathies. Statins have been shown to reduce neurofibrillary tangles in mouse models. Lithium has been shown to decrease the phosphorylation of tau. The tau protein is primary maker Alzheimer's disease.

8 0
2 years ago
Watson and crick were the first to suggest that dna is
grin007 [14]

Answer:

they suggested that DNA could make exact copies of itself

Explanation:

The two had shown that in DNA, form is function: the double-stranded molecule could both produce exact copies of itself and carry genetic instructions.Watson and Crick developed their ideas about genetic replication in a second article in Nature.

7 0
2 years ago
People plz help me!! I’ll give u brainiliest
makkiz [27]
1) 25% (1/4 of the predictions are cc)

2) cc (both lowercase)
3 0
3 years ago
However, by comparing the of these organisms, many similarities between them are revealed. These similarities suggest that they'
maw [93]

Complete Question:

1. Organisms don’t all reproduce the same way. However, by comparing the ____ of these organisms, many similarities between them are ____

2. of these organisms, many similarities between them are revealed. These similarities suggest that they’re ___ linked. This type of study is called developmental biology.

Group of answer choices.

A) Cells B) Embryos C) Mode of reproduction D) Evolutionarily. E). Revealed.

Answer:

embryo; revealed; evolutionarily.

Explanation:

Reproduction can be defined as a biological process which typically involves living organisms producing an offspring.

Basically, there are two (2) methods of reproduction and these are;

I. Asexual reproduction: it involves the cloning of a living organism to produce an offspring because there is only a single parent.

II. Sexual reproduction: it involves the combination of the genome (gamete) of a male and female living organism during fertilization.

It's a fact that all living organisms do not reproduce the same way.

However, by comparing the embryo of these organisms, many similarities between them are revealed. These similarities suggest that they’re evolutionarily linked.

Hence, we refer to this type of study as developmental biology

4 0
3 years ago
Are molecules larger or smaller than cells and why?
VashaNatasha [74]

Answer:

they are smaller then cells

Explanation:

they are composed of many atoms

3 0
3 years ago
Read 2 more answers
Other questions:
  • A turgid plant cell would be found in which type of environment?
    12·1 answer
  • During inhalation, air continues to move into the lungs until:_____
    7·2 answers
  • Imagine that you are studying a newly discovered bacterium from a hot springs in Yellowstone National Park. When you examine the
    6·1 answer
  • The appendages of cockroaches and turtles are modified for creeping movements,but their internal structures are completely diffe
    14·1 answer
  • 3 Name three products excreted by plants but commercially used by man. Also state
    11·1 answer
  • What is a second order consumer
    8·2 answers
  • What do these, terms mean ​
    10·2 answers
  • 1. Ramachandran wants to understand brain functioning. How does he believe that we can better understand how the brain functions
    14·1 answer
  • Which choices below allow for primary succession to take place?
    9·1 answer
  • Explain how meiosis and fertilization can result in a trait like sickle cell being expressed in offspring when not expressed in
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!