The pedigree below shows the inheritance of a dominant allele of a gene in a family over several generation. Circles represent females and squares represent males. Shaded symbols indicate individuals carrying the allele. The pedigree suggest that the gene is on a nuclear chromosome, and not on a mitochondrial DNA, because A) mitochondrial genes are not heritable B) mitochondrial mutations cannot produce dominant traits C) maternal mitochondrial mutations are inherited by all of a mother's offspring D) mitochondrial DNA is circular, whereas chromosomal DNA is linear
Answers
Complete question:
You will find the pedigree in the attached files
Answer:
The correct option is C) maternal mitochondrial mutations are inherited by all of a mother's offspring.
Explanation:
Mitochondrial inheritance is one of the ways in which a disease or a trait might be inherited from the maternal line.
Most of the DNI is located in the nucleus, but there is also DNI in mitochondria. Sperm cells hardly carry mitochondria, so mitochondrial DNI is mostly inherited from the maternal side. If there exists any mutation in this DNI, the whole progeny of the mutated woman will be affected, as they will get the mother´s mitochondria carrying the mutation. On the contrary, if there is a man affected by a disease caused by a mutation in mitochondrial DNI, non of their descendants will get the disease.
In the exposed pedigree, we can see that the mother is affected by the disease, but the couple had two daughters, and only one of them was affected, while the other one was not. This tells us that the mutation occurred on a nuclear chromosome. If the mutated allele was in mitochondria, both daughters would be affected.
The pedigree suggests that the gene is on a nuclear chromosome, and not on a mitochondrial DNA because maternal mitochondrial mutations are inherited by all of a mother's offspring (Option C).
Mitochondrial DNA (mtDNA) is a special type of genetic material that exhibits a matrilineal inheritance pattern.In consequence, all genes (and mutations) contained in mtDNA will pass from the mother to her offspring.It is for that reason that mtDNA is widely used in evolutionary studies (we can trace matrilineal lineage from mtDNA).In conclusion, the pedigree suggests that the gene is on a nuclear chromosome, and not on a mitochondrial DNA because maternal mitochondrial mutations are inherited by all of a mother's offspring (Option C).
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Related Questions
Organisms are divided into different kingdoms based on differences in their characteristics. Two major characteristics that scientists
use to determine which kingdom an organism belongs to are
ability to make food and ability to swim.
OA
OB ability to swim and number of cells.
OC.
ability to fly and size of organism.
OD
ability to make food and number of cells.
Answers
Answer:
A. ability to make food and ability to swim
Explanation:
Living organisms have been grouped into an hierarchical system of classification that begins with the kingdom, which is the most inclusive taxon. Organisms were placed into kingdoms based on two major criteria namely; their nutrition and mobility.
Their nutrition depends on their ability to make food by themselves (autotrophic) or not (heterotrophic) while their mobility depends on their possession of structures for locomotion.
The division of the organelles of eukaryotic cells into separate sections according to their processes is known as?
A. Sectioning
B. Separation
C. Partitioning
D. Compartmentalization.
Answers
Answer:
A. Sectioning
Explanation:
I hope it helps
what is means coordination in life process
Answers
Answer:
Different life processes like digestion, respiration, excretion and circulation are inbuilt in the body at specific places to carry out their specific functions in a coordinated manner.
When water is moving through the water cycle, what has to change in order for the water to move?
Answers
Answer:
The state of watwe
Explanation:
In order for the water cycle to happen, water has to change it's state from liquid to gas
Water at the surface of the ocean, rivers, and lakes can become water vapor and move into the atmosphere with a little added energy from the Sun through a process called evaporation. Snow and ice can also become water vapor through a process called sublimation. And water vapor gets into the atmosphere from plants by a process called transpiration.
Because air is cooler at higher altitude in the troposphere, water vapor cools as it rises high in the atmosphere and transforms into water droplets by a process called condensation. The water droplets that form make up clouds. Water vapor can also condense into droplets near the ground, forming fog when the ground is cold. If the temperature is cold enough, ice crystals form instead of liquid water droplets.
If the droplets or ice crystals within clouds grow in size, they eventually become too heavy to stay in the air, falling to the ground as rain, snow, and other types of precipitation.
what organization has classified countries as developing or developed?
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Experiments can be carried out only in a science lab.
TRUE OR FALSE.
Answers
Answer:
False
Explanation:
i hope i am right
A broken bone can heal itself in a few weeks
Asexual reproduction
Sexual reproduction
Answers
Answer:
Asexual reproduction
Explanation:
It is Asexual reproduction. Because of miosis and mitosis, the bone can heal by itself after a few weeks.
Hello please answer this really fast all of the screen shots will be in the comments I will give 90 points to who ever answers it really fast
Answers
Answer:
Where? Where are your questions? Attach the questions.
Answer: bro where is the question ???
Explanation:
answer asap plz i need this for my a
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called CF is a condition that causes excess mucus production in the lungs and if untreated causes early death. CF is caused by a deletion of 3 letters in the gene sequence. How might this deletion cause excessive mucus production?
Answers
Answer:
The correct answer is - by absorbing too much sodium and water into the cells in the respiratory system.
Explanation:
Cystic fibrosis or CF is a genetic disorder that is caused by the presence of two defective genes that leads to the production of thick and sticky mucus in an individual that affects the respiratory and digestive system by clogging mucus in it.
Due to defective genes, there is an abnormal electrolyte transport system develops in which cells of the respiratory system including the lungs absorb an excessive amount of salt (sodium) and water. It all caused by deletion of the three letters which means an amino acid from a gene that leads to the disruption of the protein that controls the production of the mucus and abnormal electrolyte transport.
One day while hiking, Maria found a rock in the wall of a canyon. In the rock, she noticed an impression of a leaf. Which answer best describes what Maria has found?
ODNA
O fossil
O genetic evidence
O developmental pattern
Answers
Answer:
B. Fossil
Explanation:
According to National Geographic, "Fossils are the preserved remains, or traces of remains, of ancient organisms." When you find the impression of a leaf, the leaf imprint is the preserved remains of the leaf.
Answer:
Fossil
Explanation:
I've had this question on my test
please solve question 5
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someone please help me I WITH THIS ILL GIVE U BRAINLY IF UR RIGHT
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Answer:
I think its B
Explanation:
I know it not C or D bc when it comes to multiple choices questions you can always cross out two. Then this leaves A or B. I think its is B bc on the top it says "shows the relation".
Let me know if i got it right. Sorry if you got it wrong
What is the function of the organelle identified in the picture
Answers
Answer:
An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.
Explanation:
There are 3 main types of Soil Textures: Clay, Sand, & A Fine B. Loam O C. Coarse 0 D. Silt
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The esophagus is shaped like a tube and carries food from the mouth to the stomach.
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Answer:
true
-Sumin <3
Answer:
tr
Explanation:
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Which property is a physical property? *
Malleable
Molds quickly
Easy to digest
Does not burn
Answers
D) Does not burn
Explanation:
cause that's physical duh
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Gama Bay
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B. Medical imaging
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Answer:
a radar
Explanation:
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Explain in your own words why a dominant trait is not always a common trait.
Answers
Answer:
Describing a trait as dominant does not mean it is the most common; it means that it is expressed over the recessive trait. For example, tongue rolling is a dominant trait, controlled by the dominant version of a particular gene (R). Individuals with one or two copies of R will exhibit tongue rolling.
What is the effect of photosynthesis in the carbon cycle?
Select one:
It adds carbons to the atmosphere in the form of carbon dioxide.
It removes carbon from the atmosphere and stores it as water.
It removes carbon from the atmosphere and stores it as glucose.
It adds carbon to the atmosphere in the form of glucose.
URGENT!
Answers
Answer:
option C is correct answer of this question
Color-blindness is a X-linked recessive disorder. under what circumstances will manifest in a child?
A) if the child is a male and it's mother has the recessive allele
B) if the child is a female and it's father has the recessive allele
C) If the child is a female and it's mother has the recessive allele
D) If the child is male and it's father has the recessive allele
Answers
Answer: A
Explanation: the gene can only be passed on the x gene, so if you are a male, you only have one x gene, so it dominates without the presence of another x gene
Answer:
A
Explanation:
because males are XY and females are XX, if two people have a son, he will receive a Y chromosome from his father and an X chromosome from his mother, if one of her alleles is recessive color blindness, there is a chance he could be color blind.
I have a test in a couple days and I still don’t know how to do this stuffsomeone teach mee
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Answers
p Pp Pp
p Pp Pp
Hom0zygous dominant: 0/4 or 0%
Heterozygous: 4/4 or 100%
Hom0zygous recessive: 0/4 or 0%
Probability of purple: 4/4 or 100%
Probability of white: 0/4 or 0%
What are 3 parts that plant cells have that animal cells do not have
Answers
Answer:
Vacuole
Chloroplast
Cell wall
Explanation:
ILL GIVE U BRAINLYIST
Answers
Answer:
D I think I'm not too sure
Consider the generalized cladogram of fish.
A cladogram is shown. At point B, the organism shares jaws but not bones.
A fossilized fish is found that has jaws but no true bones. Where does this fossil belong on the cladogram?
A
B
C
D
Answers
Answer:
A
Explanation:
Answer:
D
Explanation:
yes
Someone plz help
Giving brainliest
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Answer:
What are the instructions? Let me know so I can help in the comments :)
In a certain species of mammals, gray fur (G) is dominant to white fur (8) and brown eyes (B) are
dominant to blue eyes (b). An animal with white fur and blue eyes is crossed with an animal that has
gray fur and brown eyes (GGBb). What trait will appear in all of the offspring of this mating?
Answers
Gray fur (G) trait will appear in all of the offspring of this mating.
This is because one parent has GG. Even if the other parent has gg, all the offspring will have Gg and G is dominant.
Dominant and Recessive traits:Dominant and recessive traits exist when a trait has two different forms at the gene level.
The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.Learn more:
brainly.com/question/20639307
what type of selection causes a shift in advantageous traits
Answers
Answer:
Natural Selection
Explanation:
In population genetics, directional selection, or positive selection is a mode of natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.
Which of the following is not an example of mutualism?
Plsss help
Answers
Answer:
D. Conifers and Grasses spreading their pollen with the wind.
Explanation:
Let's start with what mutualism is. Mutualism is when both parties of a relationship benefits. So, when you go to the doctor, this would be mutualism. The doctor is getting paid, and you are getting healthy. Both sides benefit!
Now let's go thrugh out examples.
Moths drinking nectar and pollinating night blossoming flowers: The moths get fed (nectar), and the plants get pollinated (their whole purpose). Both sides benefit.
Bees drinking nectar and pollinating many angiosperms of food supply: This option might seem confusing because of the term angiosperm. I promise it isn't! Ignore angiosperm. Bees are drinking nectar -> they benefit. The other thing is getting pollinated. All plants like getting pollinated, no matter their fancy name. So both sides benefit!
Beekeepers maintaining colonies of bees and moving them to different farms and orchards: This one might also have been hard, because it requires sme critical thinking. Let's look at the beekeepers first. Beekeepers make money off of honey when they have bees, so they benefit. But do bees benefit in this relationship? Yes! Bees like having lots of plants to pick from to get their pollen. By being moved to an area with lots of plants, they get more pollen, so they benefit!
Now, we know the last one HAS to be right. But let's go through it anyways.
Conifers and Grasses spreading their pollen with the wind: Right away we know the conifers and grasses are benefitting. They want to spread their pollen- why else would they do it? But, to be mutualism, another party has to be benefitting. In this equation, there is no other party. Maybe you thought the win, or maybe you thought of the fields. What are they getting out of this relationship? Nothing. This is not mutualism.
Hope this helps and feel free to ask for any more clarification!
