Close breeding and line-breeding are a part of the inbreeding system. Inbreeding refers to the cross between relatives.
Inbreeding refers to the genetic breeding system which involved the cross between relatives.
Close breeding and line-breeding are a part of the inbreeding system and these techniques involve the obtention of pure (homo-zygous) lines.
Autogamous plants show better phenotypic features when they are pure (homo-zygous) lines.
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How does meiosis most benefit a species?
It decreases the number of chromosomes.
It increases genetic variation.
It increases the number of chromosomes.
It increases mutations.
Answer:
It increases genetic variation.
Explanation:
Meiosis does not decrease the number of chromosomes nor increase the number of them, it merely splits them.
While it could increase mutations, this might not necesarily be a good thing.
However, it does increase genetic variation, especially during the process where crossing over occurs. Increased genetic variation is beneficial for the population for many reasons like higher resistance to certain diseases. Increasing genetic variation also makes a species look unique from other members of the species.
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What’s the difference between transformed and untransformed bacteria
Answer:
DNA is accidentally moved from one bacterium to another by a virus
Explanation:In transformation, a bacterium takes up a piece of DNA floating in its environment. In transduction, DNA is accidentally moved from one bacterium to another by a virus. In conjugation, DNA is transferred between bacteria through a tube between cells.
The ___ is a short loop from the heart to the lungs and back again. HELP
Answer:
pulmonary circulation
Explanation:
it's a short loop from the heart to the lungs back again
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Which of the following describes the intention of the original farm bill?
to raise the values of agricultural products
to expanding incomes of large private sector firms
to regulate options trading on the financial markets
to reduce commodities prices for consumers
Answer:
To regulate options trading on the financial markets .Explanation:
Hope this helps
Answer:
To expanding incomes of large private sector firms.Explanation:
The farm bill connects the food on our plates, the farmers and ranchers who produce that food, and the natural resources – our soil, air and water – that make growing food possible.Hope this helps you !!How much weight can a Electromagnet carry
Answer:
500 pounds
Explanation:
I am smarty farty. Also, i just
Did some math that no one understands :C
Answer:
500 pounds
its not that easy to explain
how is biomimicry is used in companies help
Answer:
Looking to nature for inspiration can help individual designers in multiple ways. Designers are innately curious, and biomimicry provides the opportunity to learn about life's water, energy and material-use strategies. This perspective broadens the design space to bring new solutions to the table.
Explanation:
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Which option distinguishes the outcome if the Farm Bill were to end subsidies to private growers, but continue to provide food stamp funding?
Wholesale commodities prices would increase and create a devaluing of food stamps.
Food stamp recipients would replace subsidies by spending more money on agriculture.
Farm prices would drop due to a higher supply of unsold goods but no demand change.
Aid would shift and all farmers receiving subsidies would receive food stamps instead
Gaseous exchange is best described as?
Answer:
The exchange of oxygen and carbon dioxide between the alveoli and bloodstream (via passive diffusion)
Explanation:
;)
Answer: The exchange of oxygen and carbon dioxide between the alveoli and bloodstream
Explanation:
I hope this helps
In a population of cattle, the average body fat percentage is 10.5%. You select parents with an average body weight percentage of 20.8%. The offspring they produce have an average body weight percentage of 17.6%. Based on these data, what is the narrow-sense heritability of this trait
Heritability in the narrow sense -h²- refers to the proportion of the phenotypic variability that is influenced by genetic factors. In the exposed example, the narrow-sense heritability of this trait is h² = 0.689 ≅ 0.7
-----------------------------
Before answering the question, let us first review a few concepts.
The selection differential, SD, is calculated by getting the difference between the mean value of the desired trait in the population (X₀) and the mean value of the same trait expressed by parents, (Xs). So,SD = Xs - X₀
Heritability in the narrow sense -h²- is the measure of the genetic component to which additive genetic variance contributes.It referes to the proportion of the phenotypic variability that is influenced by genetic factors.
The heritability might be used to determine how the population will respond to the selection done, R.
h² = R/SD
The response to selection (R) refers to the metric value gained from the cross between the selected parents. R can be calculated by multiplying the heritability h² with the selection differential, SD.R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₁ - X₀
Now that we know these concepts and how to calculate them, we can solve the proposed problem.
Available data:
Population average body fat ⇒ 10.5% ⇒ X₀ Selected parents average body weight ⇒ 20.8% ⇒ XsOffspring average body weight ⇒ 17.6% ⇒ X₁We ned to get the narrow-sense heritability of this trait, h².
h² = R/SD
R = X₁ - X₀ = 17.6% - 10.5% = 7.1%SD = Xs - X₀ = 20.8% - 10.5% = 10.3%
h² = R/SD = 7.1% / 10.3% = 0.689 ≅ 0.7
The narrow-sense heritability of this trait is h² = 0.689 ≅ 0.7
-------------------------------------
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why is the dominant allele seen in a heterozygous individual
Answer: Since it's the DOMINANT allele that means that it will take over reccesive allele that's why it's shown.
Explanation: A heterozygous individual is an individual where the have both the dominant and reccesive allele for a trait. The dominant allele will always be stronger than the reccesive allele. This results in the dominant allele being shown.
Select the TRUE statement about a resting neuron. a.) The cytoplasm side of a neuron is positively charged while the outside of the neuron has no charge. b.) The cytoplasm side of a neuron is negatively charged while the outside of the neuron is also negatively charged. c.) The cytoplasm side of a neuron is more negative than the outside of the neuron. d.) The cytoplasm side of a neuron is more positive than the outside of the neuron.
Given what we know about the nervous system and resting neurons, we can confirm the cytoplasm side of a resting neuron is more negative than the outside of the neuron.
What is a neuron?Neurons are specialized cells that make up the nervous system in the body. Their primary function is to act as messengers, delivering information in the form of electrical impulses and neurotransmitters. These neurons work using rapid shifts in membrane potentials.In order to do this, the starting value or resting point of the membrane is negatively charged.Therefore, we can confirm that since neurons function using shifts in membrane potentials, the starting point or resting form of a neuron has a negatively charged membrane, meaning that the cytoplasm side of a resting neuron is more negative than the outside of the neuron.
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Welcome back from your expedition into the cells! Let's see if you paid attention to the molecules that are involved in the smooth muscle contraction. Which neurotransmitter is released from the parasympathetic ganglion?
Acetylcholine is referred to the neurotransmitter that is released from the
parasympathetic ganglion.
Acetylcholine is the main neurotransmitter found in the parasympathetic
nervous system. Its effects are either excitatory or inhibitory. It is a chemical
which is released by neurons to aid transmission of signals to other cells of
the body.
It helps in the contraction of the muscles, peristaltic movement of the
stomach, as a vasodilator etc.
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What happens to nutrient macromolecules in an animal's digestive tract?
A) The digestive breakdown of macromolecules determines the monomers that are
immediately needed and therefore produced.
B) Proteins and nucleic acids are digested into monomers before absorption; energy-storage
macromolecules (starch and fat) are absorbed whole.
C) They are absorbed whole and are then broken down into monomers within cells that
ultimately use them.
D) Nutrient macromolecules are digested into monomers before absorptio
3.33 Points
Answer:
D
Explanation:
Nutrient macromolecules are digested into monomers before absorption. a tube-shaped compartment for the transport, digestion, and absorption of food.
Describe changes in Earth's atmosphere and oceans
Over time.
Three plants are grown in the same environmental conditions with equal sunlight, water, and space to grow. One plant grew to have a purple flower while the other two grew white flowers. What is the most likely conclusion that can be made for the change in flower color?(1 point)
Genetic factors caused environmental changes that caused the differences in flower color.
Genetic factors caused the differences in flower color.
Environmental factors caused a genetic mutation that caused the differences in flower color.
Environmental conditions caused the differences in flower color.
Answer:
The second answer choice.
Explanation:
Genetic variation must be the answer as the plants were grown in the same conditions. Therefore, the only source of variability might be genetic variation.
The first choice is not the answer because Genetic factors cannot cause the environment around the plant to change.
The third choice is not the answer because the Environmental factors are the same, and if they were really to cause a mutation, all three plants would mutate.
The fourth is the same reason as the third: if environemnt conditions affected the flower, all three plants would change color since they were all grown in the same environemnt, not just the one we see in the results.
Some significant floricultural species can now produce flowers with attractive and unique bloom hues thanks to recent advancements in genetic alteration techniques. Thus, option B is correct.
What are the genetic factor in developing organism?Flower color is governed by two primary gene families. Genes that code for the protein machinery needed to create pigment molecules are part of one category.
The second group includes genes that result in the production of regulatory proteins. The location, quantity, and kind of machinery that makes up the pigments are determined by regulatory proteins.
Flowers have genes that determine how they look, just like humans. These plants “give birth” to pigments, which result in a rainbow of hues.
The carotenoid substance that gives tomatoes and carrots their color also gives some flowers their yellow, red, or orange hue.
Therefore, Genetic factors caused the differences in flower color.
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please help me! I'll give tons of points.
Explanation:
hypothesis - every consumption of oxygen 0.5 the times of intensity of effort 50
conclusion - so it's clearly show that oxygen rates falls rapidly by their consuption
Answer:
thanks for the points
Explanation:
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Describe how acid rain would react with rocks overtime.
Answer:
When acidic rainwater falls on limestone or chalk, a chemical reaction happens. New, soluble, substances are formed in the reaction. These dissolve in the water, and then are washed away, weathering the rock.
Explanation:
its true your welcome
Explain the difference between the inner core and outer core. What Earthly feature do they produce that protects Earth from solar weather?
The Earth core has two layers: the outer core, and the inner core. Moreover, the magnetic field protects Earth from solar weather.
The Earth's magnetic field is an invisible layer that protects life from the majority of the solar wind blast.
The magnetic field covers us from charged solar particles that crash into it and then flow around it.
Moreover, the Earth core has two layers: the outer core and the inner core, which are separated by a boundary known as the Bullen discontinuity.
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please help me i’ll give brainlist
Answer:
B
Explanation:
Which of the following organism would you consider to be unicellular and multicellular
1) Bacteria cell
2) Bat
3) Tree
4) Frog
5)Chicken Egg
6) Baker's yeast
what are the three parts of the data analysis section of a lab report?
Answer:
1) rough reading
2)initial reading
3)final reading
Explanation:
those three are always important for every lab report
Which of the following shows methods of harvesting corn in order from the
lowest rate of resource consumption to the highest?
A. Picked and sorted by hand - picked and sorted by complex
machinery - hand-picked and sorted by a simple machine
• B. Picked and sorted by hand - hand-picked and sorted by a simple
machine - picked and sorted by complex machinery
O C. Picked and sorted by complex machinery - hand-picked and
sorted by a simple machine - picked and sorted by hand
D. Hand-picked and sorted by a simple machine - picked and sorted
by hand - picked and sorted by complex machinery
Answer:
B complex would come last correct?
Explanation:
What is the location of a volcano that forms in the middle of the ocean called?
A) seismic wave
B) hotspot
C) fault line
D) earthquake
Answer: Answer is B a hot spot
Explanation:
How does the environment influence the traits of an individual?
Answer:
If an organism is living in an unhealthy environment, that could lead to hunger, dehydration, no shelter, and possibly death.
Explanation:
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Answer:
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PLEASE HELP WITH THIS ONE QUESTION
What statement about the inheritance of mitochondrial DNA is true?
A) The sperm cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.
B) The egg and sperm cells contribute equal amounts of mitochondrial DNA to the zygote.
C) The egg cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.
D) The sperm cell donates most of the DNA in the nucleus to the zygote, including mitochondrial DNA.
Answer:
The answer should be C
Explanation:
The egg contributes all the cytoplasm and organelles to the zygote. The sperm only contributes one set of chromosomes.
The typical sperm midpiece contains approximately 50-75 mitochondria with one copy of mtDNA in each. This represents an 8- to 10-fold decline in copy number during spermiogenesis.
When an employee remembers the first manager who came and spoke to them on their first day of work, the event is most likely to be stored in the employee's:
Episodic Memory!
Episodic memory includes personal information on what happened and where.
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Salt water gargle can temporarily relieve a sore throat. One recipe calls for 3/4 teaspoon of salt in 1 cup of water. A second recipe calls for 1 teaspoon of salt in 2 cups of water. Which recipe will taste saltier?
Answer:
The first solution will, since the salt to water ratio contains more salt.
Explanation:
The salt will cause the recipe to taste saltier, since the salt is what makes things salty.
Which of the following describes the impact on human health from global climate change?
Excess greenhouse gases will cause competition among vectors for hosts, and the vectors will die off.
Global climate change will result in the warming of cooler regions and will increase the spreading of disease.
Melting glaciers will keep regions too cold and prevent vectors from migrating to these regions.
Warmer climates will prevent vectors from traveling to new regions and infecting more humans.
Answer:
B - Global climate change will result in the warming of cooler regions and will increase the spreading of disease.
Global climate change will result in the warming of cooler regions and will increase the spreading of disease. Thus, the correct option is B.
What is global climate change?Global climate change is defined to as the average long-term changes over the entire Earth. These include warming temperatures and changes in precipitation, as well as the effects of Earth's warming, such as rising sea levels. Shrinking mountain glaciers.
Climatic change has become a global issue over the last few decades. Besides, these climatic changes affect life on the earth in various ways.
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