Answer:
See the answer below
Explanation:
Let the disorder be represented by the allele a.
Since the disease is an autosomal recessive one, affected individuals will have the genotype aa and normal individuals will have the genotype Aa or AA.
Since the four adults are carriers, their genotypes would be Aa.
Aa x Aa
Progeny: AA 2Aa aa
Probability of being affected = 1/4
Probability of being a carrier = 1/2
Probability of not being affected = 3/4
(a) The chance that the child second child of Mary and Frank will have alkaptonuria = 1/2
(b) The chance that the third child of Sara and James will be free of the condition = 3/4
(c)
(d) If someone has no family history of the disorder, their genotype would be AA.
AA x aa
4 Aa
The chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history = 0
(e)
(f) The chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history = 0
Assuming a single diallelic gene that express complete dominance is coding for the condition, A) 1/4 = 25% / B) 3/4 = 75% / C) 100% or 50% depending on the mates genotype.
---------------------------
Available data:
Alkaptonuria is an infrequent autosomal recessive conditionSara and James have no Alkaptonuria, but had a child expresing the condition.Mary and Frank had a child expressing the condition.The two couples each have babies and both babies have alkaptonuriaWe will assume that the gene coding for this trait is diallelic, and that expresses complete dominance, following the Mendelian inheritance pattern. So, let us say that
Allele A is dominant over a and expresses normal phenotypeAllele a is the recessive one and expresses alkaptonuriaGenotype Phenotype
AA Normal
Aa Normal carrier
aa Alkaptonuria
Since Sara and James had an affected child, we can assume they are both heter0zyg0us for the trait. The child inherited one recessive allele from Sara and one recessive allele from James.
We know that Frank has no family history of the condition. However, the allele could be present in his family, hidden by dominant alleles in heter0zyg0us state.
And because Mary and Frank also had an affected child, we can also assume they are heter0zyg0us for the trait, providing each one recessive allele to the baby.
So both crosses would be the same, between two heter0zyg0us individuals.
So let us analyze the crosses and the probabilities of getting affected and healthy children.
Cross) Mother x Father
Parentals) Aa x Aa
Gametes) A a A a
Punnett square) A a
A AA Aa
a Aa aa
F1) Genotypes
1/4 = 25% of the progeny is expected to be h0m0zygous dominant, AA1/2 = 50% of the progey is expected to be heter0zyg0us, Aa1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive, aa.Phenotypes
3/4 = 75% of the progeny is expected to express normal phenotype (AA + Aa)1/4 = 25% of the progeny is expected to express alkaptonuria (aa)a. What is the probability that the second child of Mary and Frank will have alkaptonuria?
The probabilities of having an affected child is always 1/4 = 25%.
This means that every time they are having a baby, the chances for that child to express the condition is 25%.
The genotype is this child will be aa.
****
b. What is the chance that the third child of Sara and James will be free of the condition?
The probabilities of having a normal child is always 3/4 = 75%.
This means that every time they are having a baby, the chances for that child to express the normal phenotype is 75%.
This child could be either AA or Aa.
****
The couples are worried that one of their grandchildren will inherit alkaptonuria.
d. What is the chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history?
There are two options.
Option 1The genotype of the affected child is aa.
If this person's mate is h0m0zyg0us dominant, AA, the probabilities of having an affected child is 0%.
Cross: affected child x h0m0zyg0us dominant unaffected mate
Parentals) aa x AA
F2) 100% Aa ⇒ 100% healthy children and carriers
Option 2The genotype of the affected child is aa.
If this person's mate is heter0zyg0us Aa, the probabilities of having an affected child is 50%.
Cross: affected child x heter0zyg0us unaffected mate
Parentals) aa x Aa
F2) 50% Aa ⇒ healthy children and carryiers
50% aa ⇒ affected children
So, the chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate is normal, depends on the mates genotype,
h0m0zyg0us dominant ⇒ 100% normal childrenheter0zyg0us ⇒ 50% normal children and 50% affected children--------------------------------
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Which contributes to the polarity of a water molecule?
Nucleic Acids make up DNA. DNA, in turn, is used as a blueprint to make
Answer:
I believe its RNA
Explanation:
RNA is the new copy of DNA
Nucleic Acids make up DNA. DNA, in turn, is used as a blueprint to make RNA.
What is DNA?Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid.
The DNA of an individual can be found in almost all of their cells. DNA contains the bases adenine (A), cytosine (C), guanine (G), and thymine (T) (T).
All biological cells contain ribonucleic acid (RNA), a crucial biological macromolecule.
It plays a major role in the production of proteins by acting as a messenger for DNA, which in turn carries the genetic instructions necessary for life's growth and maintenance.
The DNA blueprint is first transcribed into RNA, another large macromolecule, to generate proteins.
To create proteins, ribosomes receive the exported RNA from the cell nucleus. The RNA sequence is read by ribosomes, which then use it as a template to make new protein molecules.
Thus, RNA is the molecule made from the blueprint of DNA.
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Through which conversion is energy released?
ADP to ATP
ATP to ADP
NADP+ to NADPH
CO2 and H2O to C6H12O6 and O2
Answer:
B. ATP to ADP
Explanation:
Just took the quiz on e2020
Answer:
B :)
Explanation:
just took the test
Which amino acids have side chains that fit into the specificity pocket of chymotrypsin?
Answer:
The aromatic amino acids; Phenylalanine, Tryptophan, Tyrosine
Amino acids with bulky side chains; Leucine and Methionine
Explanation:
Chymotrypsin is a member of the serine proteases, which is family of enzymes that hydrolyze peptide bonds through the action of an active site serine.
Chymotrypsin cleaves peptide bonds on the C-terminal of aromatic amino acids or amino acids with bulky hydrophobic sides chains such as phenylalanine, tyrosine and tryptophan, leucine and methionine. This specificity for aromatic amino acids is due to its large hydrophobic pocket and due to the complementary nature of these amino acids when they bind to the pocket.
Use the drop-down menus to complete each sentence.
are organisms that contain more than one cell with membrane-bound organelles and a nucleus.
Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as
Answer:
✔ Eukaryotes
are organisms that contain more than one cell with membrane-bound organelles and a nucleus.
Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as
✔ prokaryotes
Explanation:
1. Eukaryote
2. Prokaryote
To unlock the fifth wheel, pull the release handle to the________ position.
Answer:
The correct answer is "open".
Explanation:
The fifth wheel is an element that couples a heavy-duty pickup truck and a camping trailer. To unlock the fifth wheel it is necessary to pull the release handle to the open position. In the open position of the release handle the fifth wheel is unlocked, which allows to uncouple the heavy-duty pickup truck and the camping trailer
Which has the most direct impact on evaporation in the water cycle?
O A. pollution
O B. temperature
O c. deforestation
O D. ozone depletion
Answer:
O D. ozone depletion.
Explanation:
O D. ozone depletion
What is the a simple heart central conflict?
Answer:
The central conflict in the book by Gustave Flaubert speaks to the inability of the housemaid to (after the death of her mistress) love (that is care for) herself when ironically she had given all her heart in the devotion to same.
Explanation:
Félicité -the housemaid is a characterised as a simple-minded, woman who although loyal to a fault suffers tremendous loss the loss is mostly psychological.
She is unable to bring herself to live a life outside the one which she had with her mistress. So as the very house where she and her mistress lived decays, so does her condition worsen.
Cheers!
On topographic maps, how do you represent a steep slope?
A. Contour lines that are closely spaced
B. Contour lines that are dashed or dotted
C. A lack of contour lines
D. Contour lines that are far apart
Answer:
Contour lines that are closely spaced(Apex Approve)
Explanation:
On a topographic map the amount of elevation change is related to the number of contour lines. Using the same contour interval, the more contour lines over the same distance indicates a steeper slope. As a result, areas of a map where the contour lines are close together indicate steeper slopes
Anything that occupies space and takes up mass
Answer:
Matter
Explanation:
Matter consist of tiny and discrete particles
Explanation:
Hey there!!
The answer is matter.
We simply define matter as anything which occupies space, has some mass.
Hope it helps...
what is microsporangium
Answer:
microsporangium are sporangia that produce microspores and give rise to male gametes
Explanation:
When cells in an organism associate with each other, they form
O macromolecules.
O molecules.
O populations.
O atoms.
O tissues.
Answer:
O molecules.
Explanation:
They are any of numerous substances that are produced by cells and living organisms
When cells in an organism associate with each other, they form tissue.
What is a cell?Cells are the smallest, structural, and functional unit of life. It is the building block of an organism.
A tissue is a group of cells that have identical structures and that function together as a unit. When a number of cells in an organism associate with one another, they form tissues.
Therefore, when cells in an organism associate with each other, they form tissue.
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Roses attract more pollinators than tulips
Answer:
Pollinators are such as bees, insects, moths etc. that help in pollination of flowers.
Explanation:
When we heard about the pollinator we always think that theses are bees. Bees are very important in pollination of the plant. Pollinators are the insects that take some pollen from one flower to another flower and the procedure takes place for further.
These flowers attracts bees, insects, butterflies, bats moth and small mammals. Rose color and its tempt with fragrance attracts insects and bees. There are variety of flowers that attracts pollen but rose attract more because of fragrance and its color.
If I put 1 mole of substance A and 2 moles of substance B into 1 liter of water, which
of the following best describes what I have made?
A. 3M solution
B. This is impossible to calculate with 2 solutes
C. moles can't be put in water or they will drown
D. 1M substance A and 2M substance B solution
Answer:
c.moles can't be put in water or they will drown
Explanation:
What conclusion is best supported by the selection above ? NUMBER 2
Discuss the role of proteins in membrane structure and transport of molecules across the membrane?
The role of proteins in membrane structure and transport of molecules
across the membrane include the production of hydrophilic pores to aid
movement of molecules into the cell.
Proteins are organic substances found in cells which produce pores which
have a high affinity to water thereby allowing other important molecules
enter into the cell.
It is a very important feature of the cell membrane as it ensures there are
enough nutrient needed by the cell to prevent starvation and death.
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What’s the difference with prokaryotes and eukaryotes and how are they the same?
A scientist wishes to represent the location of an earthquake in California. Which type of model is most appropriate for this purpose?
Answer:
Seismograph?
Explanation:
If an earthquake happens, seismologists use seismic waves that are detected with seismographs, to locate the epicenter of an earthquake, and also to estimate the strength and duration of the earthquake
Convert the following measurements to scientific notation format:
4.2 milliliters= ______?_______ x 10? liters
Scientific notations are used to write the numerical values in easier formats. The unit conversion of the volume can be written as 4.2 milliliters = 4.2 × 10³ liters.
What is scientific notation?Scientific notation has been the way to write the smaller and larger numbers in the form of coefficients and a base raised by the exponential powers. It uses decimal and base 10 to write the numerical values.
It is generally used to write the converted units that are larger or smaller. The exponential power to the base in scientific notation is non-zero integers and can be either positive or negative.
The units of volume can be converted from mL to liter as:
1 mL = 1000 liters
Given,
Volume = 4.2 milliliters
Converting units as:
1 mL = 1000 liters
4.2 mL = 4200 liters
It can be written in scientific notation format as: 4.2 × 10³ liters.
Therefore, the scientific notation is written as, 4.2 × 10³ liters.
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Fats are major components of the cell’s ____. a. membranes b. cytoplasm c. DNA d. ribosomes e. proteins
Answer:
membranes
Explanation:
What is the difference between mitosis, and meiosis?
Answer:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells. Below we highlight the keys differences and similarities between the two types of cell division.
Explanation:
Sample Question:
The different properties and functions of carbohydrates, and other biological molecules, is due to
what?
A.
Their structures.
B.
Where they are found.
C.
They are inorganic molecules.
D.
Their bonds.
Answer:
d. Their bonds
Explanation:
Answer:
Their bonds
Explanation:
Define the term, Stratigraphy. identifying landofrms graph keeping the record of smal microbes measures eaerthquake vibrations process of describing the patterns in which rock layers are deposited.
Answer:
Process of describing the patterns in which rock layers are deposited.
Explanation:
Stratigraphy is a field of earth sciences that studies the sequence of consecutive rock layers (stratification), with the aim of dating and describe the characteristics of the soil.
Stratigraphy is used to determine the paleogeography of an area. It also plays an important role in archaeological, paleoclimatic and paleontological research, where it is important to know from which layer a particular object, fossil or data originates and to which age it corresponds.
Define structuralism and functionalism and explain their similarities and differences.
Answer:-Structuralism is the field concerned with discovering the basic elements of consciousness and...
-Functionalism is the field concerned with how mental processes help organisms adapt to their environment.
-Wilhelm Wundt established structuralism; he broke down consciousness into its two basic elements- subjective feelings and objective sensations.
-William James established functionalism; James disagreed with the functionalists and believed that consciousness couldn't be broken down as structuralists believed because it was a continuous stream of consciousness.
-Similarities are that subjective feelings and objective sensations are included in a continuous stream of consciousness as well as many other things. Organisms can adapt to their environment by using their subjective feelings and objective sensations and thoughts in order to solve problems that occur in their environment.
what part of the brain is labeled c in the diagram
Answer:
What diagram my guy
Explanation:
Theres no diagram
The part of the brain is labeled c in the diagram is forebrain which has been represented in the diagram.
Which part of the brain is more linguistic?In comparison to the right brain, the left brain is more linguistic, analytical, and organized. It is often referred to as the digital brain. It performs tasks like reading, writing, and calculations better.
According to the hypothesis, persons who are left-brain dominant perform best in occupations that require verbal, mathematical, and linear thinking, such as that of an accountant, scientist, or computer programmer.
Children that use their left brain more effectively tend to think more analytically and do academically well. They might be very good at memorizing enormous quantities of information, have a large vocabulary, and pay close attention to detail.
Therefore, The part of the brain is labeled c in the diagram is forebrain which has been represented in the diagram.
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What phrase describes a good scientific question? has a wide focus addresses a gap in knowledge does not lead to a testable hypothesis has a simple yes or no answer
Answer:
The correct answer is : addresses a gap in knowledge
Explanation:
A scientific question is an inquiry or question that may prompt a hypothesis and help us in explaining or the answering the reason behind the question by observation. A hypothesis is a speculative, testable response to a scientific question.
A proper scientific question has certain qualities.
It should be answerable but not in ye or no,
It should lead to testable hypothesis
prompts a speculation that is falsifiable
should focus on only the one aspect that is asked
Thus, the correct answer is : addresses a gap in knowledge
What type of organic substances are fats
Which is the correct chemical equation for photosynthesis? 6CO2 + 6H2O ® C6H12O6 + 6O2 C6H12O6 + 6O2 ® 6CO2 + 6H2O 3CO2 + 3H2O + 3O2® C6H12O6 6O2 + 6H2O ® C6H12O6 + 6CO2
Answer:
[See Below]
Explanation:
Here's the equations for photosynthesis.
~Hope this helps Mate. If you need anything feel free to message me.
The eqation which reporesent Photosynthesis is 6CO2 + 6H2O ® C6H12O6 + 6O2
Photosynthesis is the process by which green plants manufacture their food(in form of sugar) using carbon dioxide and water in the presence of sunlight. This is possible because of the presence of chlorophyll which creates a medium to absorb the sun's energy. The Light energy formed then converts water and carbon dioxide into oxygen and sugars.
The chemical equation to represent the process is as follows
6CO2 + 6H2O ------> C6H12O6 + 6O2.
sunlight
Here, six molecules of carbon dioxide and six molecules of water reacts in the presence of light energy captured by chlorophyll from the sun to form sugar and six molecules of oxygen.
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If you have a vloume of 55l and a density of 2kg/l what is the mass
Answer:
110 kg
Explanation:
Density = Mass / Volume ===> Mass = Density x Volume
Now follow the given:
- Density = 2 kg/L or 2000 g/L
- Volume = 55 L
Apply the rule:
Mass = 55 L x 2 kg/L = 110 kg or 110000 g. ( Liters is cancelled by Liters).
Can there be wild hyenas in New Mexico?
if there is jungle than it can be.
But wild hyenas is found in south Africa.Answer:
Wild hyenas are found in some parts of Africa
Explanation:
So i don't think so unless you have one as a pet and for some reason it goes wild and escapes