The inheritance pattern for an autosomal dominant trait is shown in the pedigree Shaded symbols represent individuals that express the dominant trait Pedigree.Shaded symbols represent individuals that represents that express the dominant trait.
Based on this pedigree, what are the most likely genotypes of individuals I1 and I2
A.
I1 - aa
I2 - Aa
B
I1 - AA
I2 - Aa
C
I1 - Aa
I2 - aa
D
I1 - aa
I2 - AA
( please explain, this is a test prep question and I really need help with it. )
Answers
Answer:
C. Aa and aa
Explanation:
The question tell us that shaded symbols represent individuals who express a dominant trait (or phenotype). This means that symbols that are not shaded represent individuals who express a recessive trait (or phenotype).
A dominant allele (A in this case) will always mask a recessive allele (a in this case) when present and be shown in the organism's phenotype. Therefore genotypes AA and Aa, which both contain the dominant allele A, will both result in dominant phenotypes, while the genotype aa will result in a recessive one due to the absence of a dominant A allele.
Looking at the pedigree chart we can see that individual 1 has a dominant phenotype, and individual 2, a recessive phenotype. Since the only way for an organism to have a recessive phenotype is to only have recessive alleles, organism 2 must have genotype aa. Similarly organism 1 must have at least one dominant A allele, therefore C is the correct answer.
Hope this helped!
Related Questions
why does water enter the paramecium
please answer asap !!!!
Answers
Answer:
As paramecium lives in fresh water, it has the problem of water being transported into it because of osmosis.
Explanation:
osmosis is the movement of any solvent through a selectively permeable membrane into an area of higher solute concentration, the result of which will be an equalizing of solute concentration on either side of the membrane.
Answer:
. Their cytoplasm contains a greater concentration of solutes than their surroundings and so they absorb water by osmosis
Explanation:
Paramecium and amoeba live in fresh water.The excess water is collected into a contractile vacuole which swells and finally expels water through an opening in the cell membrane.
Origin: lateral third of clavicle, acromion, and spine of scapula. Action: abduction, flexion and extension, medial and lateral rotation of arm * Deltoid Infraspinatus Supraspinatus Subscapularis
Answers
Answer:
The correct answer is - Deltoid
Explanation:
Deltoid muscles are thick triangular muscles that help in raising and rotating arm covers shoulder joints. It originates lateral third of the clavicle, inferiorly along the spine of the scapula to the acromion.
Deltoid muscles provide actions that include flexion and medial rotation, abduction, and extension, and lateral rotation at the shoulder joint. Deltoid means triangle or that has three sides as it has three originating sides.
If a solution is made up of 30% solute, what is the percentage of solvent?
Answers
the life is very beautiful thing to gift by God. a some are happy. b. some are sad c. some are smile. choose any one
Answers
Answer:
i pick C
Explanation:
Because in any situation both good or bad we should smile
Well A and C works hand in hand though
which accessory gland is important in male reproduction
Answers
Answer:
Prostate
The prostate is one of the male accessory glands that contributes to the male ejaculate by producing seminal fluid.
Answer:
prostate
Explanation:
might be wrong tho ynk
Which of the following cells should have the most mitochondria?
O skin cells
O muscle cells
O blood cells
O nerve cells
Answers
Question : Define the term ,' Lava'.
Answers
Answer:
Lava, according to Oxford Dictionary, is defined as
"hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this."
Explanation:
I hope this helps!
Answer:
lava is a hot molten liquid of coal of fire which are erupted during volcano eruption.it occurs naturally which temperature is high no one afford its temperature. almost all got dry.
1. Why does the Howler monkey howl?
A. To signal ownership of territory.
B. To attract a mate.
C. To keep tabs on where rival troops are.
D. Both A and C.
Answers
Answer:
d
Explanation:
PLEASE PLEASE HELP LOL this is from lesson 2 chapter 5 "Pearson Realize"
bestie i need a hand
Answers
D
D
D
D
D
D
Did
Sk
Sis
Sis
Sis
Sis
Sks
Bestie I need a hand
17. To produce the same intensity and color of light, you can choose from a 60-watt incandescent bulb, a 17-watt compact fluorescent bulb, or a 10 watt LED bulbWhich is the most energy efficient?
a. The incandescent bulb.
b. The compact fluorescent FL) bulb.
c. The LED bulb
Answers
Answer:
10 watt LED bulb.
Explanation:
The most energy efficient is 10 watt LED bulb because it produces more light by consuming less amount of energy. If a substance is more efficient so it consumes less amount of energy for doing its work while on the other hand, less efficient substances uses high amount of energy for doing its work so that's why we can say that 10 watt LED bulb is more efficient its as compared to incandescent bulb and a 17-watt compact fluorescent bulb which uses high amount of energy.
Which type of growth can occur only when a population has unlimited resources?
limited
logistic
exponential
negative
Answers
Answer:
c. on edge
Explanation:
When resources are unlimited, populations exhibit exponential growth, resulting in a J-shaped curve. The correct answer is c) exponential.
What is the exponential growth curve?Exponential growth curves and logarithmic growth curves are the two different forms of growth curves. In an exponential growth curve, the slope increases steadily over time. A logarithmic growth curve has a steeply increasing slope that gradually flattens out over time.
The exponential growth curve, which has a J-shape, shows a period of time where the results develop rapidly and steadily. It is the reverse of gradual progress. This curve initially climbs gradually before accelerating, which represents multiplied growth.
With exponential growth, a population's growth rate per capita (per person) remains constant regardless of population size, causing the population to expand exponentially as it grows larger. In nature, populations may expand exponentially for a while, but ultimately, their growth will be constrained by the availability of resources.
Exponential expansion happens when resources are unrestricted. Due to the favorable conditions, there are a lot more births as a result of the food excess.
Therefore, the correct answer is c).
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‼️‼️‼️please help!!!
Answers
Answer:
fossil fuel use in automobiles
Explanation:
Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. VOCs are released from gasoline, paints, and many cleaning solvents. When sunlight hits these chemicals, they form airborne particles and ground-level ozone—or smog.
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In which digestive organ does food spend the least amount of time?
Answers
Which of the following is a tissue in your body?
O Your kidneys.
O Your brain.
O Your bicep muscle.
O Your digestive system.
Answers
Answer:
A your kidneys
Explanation:
Which of the following is most likely to cause the greatest decrease in the snake population?
Choose 1 answer:
A
A decrease in the mice population
B
A decrease in the hawk population
An increase in the grasshopper population
A decrease in the vulture population
Answers
Answer:
I believe the answer is A: a decrease in the mice population
Answer:
Maybe A
Explanation:
Because due to the fact that there is a shortage in mice might cause a decrease in snake population
Which of the following organisms can have all of the energy it uses to move, grow, and survive traced back to radiant energy from the Sun?
a tree
a human
a flower
a bacterium
a fish
Answers
Answer:
a tree and a flower
Explanation:
Answer:
Ummmm, all of them?
Hope this helps!
Explanation:
why are plants the start of the food web
Answers
which one ? A? B? C? D?
Answers
Answer:
b
Explanation:
maybe something else too but B for sure
To which category does galaxy #2 belong? Why does it belong in this category?
Answers
Answer:
mildly category .... if am not wrong
Answer:
Explanation:
Galaxy #2 belongs to spiral. This is because it has a bulge at the centre, a disk as well as the curved arms. Contains both Young and Old stars - contains gas and dust - contains more red giants and red supergiant's than disk - some regular rotation about centre.
What Is Dark Matter?
Dark matter is a form of matter thought to account for approximately 85% of the matter in the world. Dark matter consists of particles that do not absorb, reflect or emit light, so they cannot be detected by observing electromagnetic radiation. Dark matter is material that cannot be directly seen. We know dark matter exists because it affects objects we can directly observe.
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NEED HELP! 6th grade plants lesson. I'm in a hurry.
Answers
Sooo what do you need help on?
I will try my best to help you out!
What happens to the oxygen you breathe in during cellular respiration?
Answers
Para un carácter existen tres alelos distintos: dos codominantes entre sí y otro recesivo. ¿Cuántos genotipos distintos existirán para ese carácter?¿Cuántos fenotipos?
Answers
Answer:
6 genotipos y 4 fenotipos
Explanation:
La codominancia es un tipo de interacción alélica donde ninguno de los dos alelos puede enmascarar la expresión del otro alelo, produciendo de este modo un fenotipo diferente en presencia de ambos alelos (es decir en individuos heterocigotas). Un ejemplo de alelos codominantes son los alelos A y B del grupo sanguíneo, los cuales se expresan en individuos heterocigotos. Por otra parte, un alelo recesivo sólo puede expresarse en individuos homocigotas que portan dos copias del mismo alelo recesivo. El caso del grupo sanguíneo es idéntico a la pregunta planteada, ya que en este caso tenemos dos alelos codominantes entre sí (alelos A y B) los cuales son dominantes respecto al alelo O recesivo. En este caso, de la combinación de alelos pueden resultar seis genotipos (IAi; IAIA; IBi; IBIB; ii; AB) y cuatro fenotipos (tipo de sangre A, tipo de sangre B, tipo de sangre AB y tipo de sangre O).
Which of the following is TRUE about igneous rocks?
A. do not contain fossils
B. do not contain crystals
C. May contain layers
Answers
1. When an ingenious rocks are formed in lava( magma but outside) there are called extrusive rock, they have no layers, plan by one color which is black and is smooth.
2.When an igneous rock is formed in magma( underground ) it’s Intrusive rock, they have sediments not layers, different color, and is not smooth. But rarely have fossils.
So the answer is A.
I hope this helped have a nice day
Sample 2 was taken from a nasal swab of a family member who has been having sinus infections. What course of antibiotics would you recommend?
Answers
Answer:
Amoxicillin
Explanation:
Amoxicillin (Amoxil) is a commonly prescribed antibiotic which can cure acute sinus infections. Amoxicillin-clavulanate (Augmentin) is often prescribed by the doctor for a bacterial sinus infection. Take antibiotics as long as your doctor has prescribed in order to get rid completely from the infection and in order to reduce the chances of infection up to zero. They may be taken from 3 to 28 days depending on the time of antibiotic for sinus infection.
Macrophages are responsible for which functions?
Select all that apply.
initiating an immune response
alerting the body of foreign invasion
removing harmful substances
o providing oxygen to the body
Answers
Answer:
B.
Explanation:
Macrophages are specialized cells involved in the detection, phagocytosis and destruction of bacteria and other harmful organisms. In addition, they can also present antigens to T cells and initiate inflammation by releasing molecules (known as cytokines) that activate other cells.
Hope this helps :)
Answer:
A. initiating an immune response
B. alerting the body of foreign invasion
C. removing harmful substances
Explanation:
hope this helps!!
Ecosystems must recuperate after catastrophes such as fires or hurricanes. A forest experiences a fire due to warm climate. Months after the fire, some nonnative
plants began to grow in the area. Why were these plants able to grow?
Answers
Answer:
The plants were able to thrive in the newly formed niche.
Explanation:
I took the test + thats what i think
The growth of the non-native plants must have been triggered by the fact the new plants finds the ecosystem favorable.
When Ecosystems experience ecosystem such as fire, drought or other catastrophe which causes damage to the plants and fruits in the area, it causes immeasurable destruction.
Usually in such ecosystem, plants would usually find it difficult to sprout due to the damage caused to the soil nutrients as a result of the disaster.
However, over time, new plants may begin to sprout as they become more used to newly found environment or niche.
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As wave crash into the coastline with great force, what is the correct order of formation
Answers
Answer:
Explanation:
mnk
Which organisms store some of the molecules from food in their bodies 15 points
to use later as a source of chemical energy and building materials?
animals
plants
both plants and animals
none of the above is correct
Answers
Not sure but i think its plants
Both plants and animals store some of the molecules from food in their bodies to use later as a source of chemical energy and building materials.
One of the important characteristics of living organisms is metabolism. Living organisms are able to obtain food which is stored as various chemical substances in the body.
This food materials that are stored as chemical substances are later broken down to produce the energy required by the organism to carry out its activities. Both plants and animals store some of the molecules from food in their bodies to use later as a source of chemical energy and building materials.
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Which of the following dietary practices would have the most positive impact on the overall physical performance of an individual?
O reducing intake of fats to zero
O balancing the intake of nutrients
eating energy bars and drinking sports drinks
O consuming more proteins than carbohydrates
Answers
Answer:
i think B.
Explanation:
Balancing nutrient intake will have the most positive effect on a person's overall physical performance. So, the correct option is (B).
What are Nutrients?A nutrient is defined as a substance that is used by an organism to survive, grow and reproduce. The requirement for dietary nutrient intake applies to animals, plants, fungi, and protists. These are the chemical compounds in food which are used by the body to function properly and maintain health.
Different types of nutrients are as follows:
CarbohydratesProteinsFatsVitaminsMineralsDietary fibreWaterIt is a substance that the body needs for survival, growth and reproduction. It gives us energy and allows our bodies to perform their essential functions. Every organism on our earth needs nutrients which are essential for life.
Thus, balancing nutrient intake will have the most positive effect on a person's overall physical performance. So, the correct option is (B).
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Which statement correctly describes the difference between cellular respiration and photosynthesis?
A.
Photosynthesis involves chemiosmosis, and cellular respiration doesn’t involve chemiosmosis.
B.
Photosynthesis doesn’t produce any ATP, and cellular respiration produces ATP.
C.
Photosynthesis occurs during the day, and cellular respiration occurs at night.
D.
Photosynthesis creates energy that the plant stores, and cellular respiration utilizes the energy.
E.
Photosynthesis is an anabolic reaction, and cellular respiration is a catabolic reaction.
Answers
Answer:
The answer is E.
Explanation:
An anabolic reaction is one that involves the building of complex substances from simple ones and it uses up energy. Photosynthesis is an anabolic reaction because It requires energy.
A catabolic reaction is one that involves the breakdown of complex substances into simpler ones and in the process energy is released. Cellular respiration is catabolic because energy is released during this process.
Answer:
The person is correct
Explanation:
I got it right