Which statement best describes the process of crossing over? (1 point)
A.Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.
B. Pairs of homologous chromatids are divided in half and distributed randomly into new diploid cells.
C.Homologous chromatids pair up, and non-sister chromosomes exchange genetic material.
D.Pairs of homologous chromosomes are divided in half and distributed randomly into new haploid cells.
Which cell replicates via meiosis?
A.sperm cell
B. red blood cell
C. heart cell
D.skin cell
Answer: process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other
Explanation: sperm cells
CROSSING OVER:
Crossing over is a unique process that occurs only during meiotic division. Crossing over, also called recombination, occurs during prophase I of meiosis. Crossing over is the process by which non-sister chromatids of homologous chromosomes (a pair of similar but non-identical chromosomes from each parent). Crossing over ensures genetic diversity in the gametes (daughter cells) produced from meiosis:MEIOSIS:
Meiosis is the type of cellular division employed by sexual reproducing organisms to create sex cells or gametes. Meiosis produces four genetically different daughter cells called gametes. Sperm cells are gametes produced by male organism while egg cells are gametes produced by female organisms.Learn more: https://brainly.com/question/18824252?referrer=searchResults
Explain the theory of evolution
please
As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.
Answer:
Explanation:
evolution is fueled by something called natural sellectoin to explain this lets say a species of birds move to an island where there are more seeds the ones that are able to eat will survive and reproduce and they will reproduce most times they will overproduce so there is a higher chance of surviving and there bodys will slowly change like the mucles will become stronger along with the beak that is baisicly evolution but this does take millions of years this not a few years and they change this is s extremly slow change.
Is extreme fatigue symptoms or diagnosis
Unrelenting exhaustion may be a sign of a condition or an effect of the drugs or therapies used to treat it, such as: Acute liver failure. Anemia. Anxiety disorders.
How did God distinguish humans from animals?
Does each square on a "punnet square" represent 4 offspring or does it represent the odds of one offspring?
Answer:
Explanation:
Punnet square is a square diagram used to predict the genotypes of the offspring of a particular cross or breeding experiment.
It represent 4 offsprings of the cross between two parents. Each punnet contain the alleles in the right combination and proportion.
Punnet square is use to determine the percentages of different genotypes present in the offspring of two parents and to determine missing alleles in a cross.
it can also be used to predict the percentages of phenotypes in the offspring usually from a parents with known genotypes.
What happens to most of the sunlight
energy that reaches the earth?
Answer: In explanation
Explanation:
Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. Some of the sun's energy is reflected back to space by clouds and the earth's surface.
Explanation:
Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor.
2. Your teacher instructed you to measure the salinity of brine you will use in
curing fish. Which of these will you do?
a.
Recall and master the procedure in using a salinometer
b. Review and master the procedure in using the thermometer
c. Review the procedure in using a psychrometer
d. Review the procedure in using a refractometer
Answer:
a. Recall and master the procedure in using a salinometer
Explanation:
Salinometer, which is also known as salimeter is a laboratory equipment used to measure the salinity of a solution. Salinity refers to the concentration/amount of salt in a solution.
According to this question, a student was instructed by his/her teacher to measure the salinity of brine used in curing fish. This means that to do this, the student will have to make use of a SALINOMETER. In order to use the salinometer, the student has to recall and master the procedure in using a salinometer.
A mutation that occurs in the gametes of an organism will most likely be transferred to which of the following.
A.The siblings of the organisms
B.the offspring of the organisms
C.the other organisms living near by
D.the mating partner of the organisms
Answer:
offspring of the organism
What types of pollutants can interfere
with the health of Wetland Ecosystems?
A) All of the above are threats to Wetlands.
B) Petroleum products such as motor oil.
C) Pesticides.
D) Nitrogen & Phosphorus fertilizer.
Large plants are non-vascular.
A)true
B)false
Answer:
I think it's False but i'm not 100% sure
Explanation:
Which structure is responsible for controlling substances that enter and leave the cell?
Answer:
Cell Membrane
Explanation:
How does a mouse reproduce ?
Answer:
Mice are breeding machines. They have a gestating period of 19 to 21 days. A female mouse gets pregnant about 5 to 10 times each year and can give birth to a litter of 3 to 15 pups. On average, a female mouse atleast give birth to 35 to 56 pups. The mice reproduce each year, and the mother can mate immediately after giving birth.
Use the picture to explain how CONVECTION heat transfers could be responsible for the weather in our atmosphere.
Answer the question in 2-3 complete sentences.
Answer:
The sun's waves heat the ground, causing it to warm (radiation). The energy flows from the warmer ground to the cooler air (conduction), causing it to rise (convection). When the rising air reaches a certain point, it expands, cools, and the cooler expanded air can no longer hold as much water vapor so it rains.
Explanation:
What does it mean for a genotype to be hetrozygous?
Answer:
this means the 2 letters in the genotype can not be both lowercase or both uppercase
Explanation:
Therefore a genotype that is heterozygous will always be heterozygous dominant and will look like Bb
Match each term with its best definition.
Plutons, Sills, Injection, D*kes
Check the comments for the answer.
Answer:
hey u blocked me pliz unblock me yer
Explanation:
Answer:
across existing rock.
Which taxon group is the largest? *
A. Domain
B. Species
C. Phylum
D. Kingdom
Answer:
Option D) Kingdom is the largest group in taxon
i hope this might be the answer and help u
Please help me
Due Now
A. The mass of the egg white increases as the volume of the enzyme increases
B.The egg white is unaffected by the differing amounts of enzyme
C. Digestion decreases in each stomach as more of the egg whites surface area becomes exposed
D. Digestion increases as the volume of the enzyme increases
Answer:
D
Explanation:
The correct answer would be that digestion increases as the volume of the enzyme increases.
Protein digestion is catalyzed by the pepsin enzyme and aided by HCl. The combined actions of both substances form the basis for the digestion of protein in the stomach. Hence, one would expect the digestion of the boiled egg white to increase with the increase in the volume of the enzyme - all other factors remaining constant.
The correct option is, therefore, D.
how does it make you feel to know you have likely eaten a genetically modified food?
Answer:
Feels kinda weird knowing that we are eating not organic food but modified. Tastes a bit different.
Explanation:
TRUE or FALSE? The development of homes
and building can threaten Wetland
ecosystems since water is required to
cleared.
A) False
B) True
Answer:
True
hope you have a great day!
You move a 12-newton box up a 6-meter ramp.
In order to find out how much power you created, what would you need to know?
A.the acceration
B. the time
C.the distance
D.the temperature

Melosis results in the formation of
A:2 genetically similar cells
B:2 genetically different cells
C:4 genetically similar cells
D:4 genetically different cells
Answer:
c 4genetically similar cells
How does the operator region of DNA work to regulate gene expression?
Answer:
Explanation:
Operator region are region of DNA (deoxyribonucliec acid) that repressors protein binds to prevent transcription.
Repressor is an example of regulatory protein they regulate the rate at which transcription of operon occurs . A repressor functions when its bounded to the operator and it prevent enzyme RNA (ribonucliec acid)polymerase from moving to DNA to transcribe the nitrogenous bases by placing a complementary base pair.
Activators are other regulatory proteins that bounds to its DNA binding site and increases transcription of the operon.
Tokyo will hold the olmics in 2020.into passive
Answer:
the Olympics in 2020 will be held by Tokyo .
Answer:
Change it to passive: Tokyo will hold the Olympics in 2020. You can't change it because it is an intransitive verb. ... The Olympics are being held in Tokyo en 2020
Explanation:
PLEASE HELP MEE!!!
Diffusion, osmosis, facilitated diffusion, and active transport are?
A. ways cells make food
B. ways cells move materials around
C. ways cells use the sunlight
D. ways that cells reproduce
What are the 2 main components of the Central Nervous System?
Answer || The central nervous system and the peripheral nervous system.
The nervous system is a complex system that is made up of nerves and nerve centers in different organisms that carries messages to and from the brain and the spinal cord to send them into various parts of the body.
It is primarily divided into :
1 ) CNS that is central nervous system ( made up of brain and spinal cord). The CNS is responsible for the voluntary functions of the body.
2 ) PNS that is peripheral nervous system ( possess cranial and spinal nerves arising from brain and spinal cord respectively). It controls the involuntary functions of the body.
Which organism is an example of a club fungus?
Answer:
Mushroom is an example of club fungus
Explanation:
hope it helps, have a great day!
Explanation:
the division of fungi known as the club fungi, basidiomycota. mushroom, puffballs, and shelf fungi are all members of the group, as are the plants rust and smuts. hope it helps
Please help I’m not sure
Answer:
A: a giraffe’s long neck
Explanation:
Answer:
A giraffe's long neck
Explanation:
An inherited trait is defined as "a derived genetically from one's parents or ancestors." So something that is passed down through an organisms genetics. I hope this helped!
A diagram that shows the amount of energy that moves from one feeding level to another in a food web is
A: food chain
B: energy pyramid
C: ecosystem
D: niche
Energy plays a important role in the propagation of life in ecosystems. Food chain shows the amount of energy that moves from one feeding level to another in a food web. Thus, the correct option is A.
What is food chain?A food chain is defined as the order of events in an ecosystem, where one living organism eats another organism, and later that organism is consumed by another larger organism.
The flow of nutrients and energy from one organism to another at different trophic levels forms a food chain. A system of interlocking food chains is called a food web.
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Write a hypothesis about pH level on common household solutions based on physical and chemical properties.
Answer: If a solution is an acid, then it will have a pH below 7, and if the solution is a base, it will have a pH above 7 since the pH value is determined by the concentration of H+ and OH– ions.
Explanation:
Answer:
Sample Response: If a solution is an acid, then it will have a pH below 7, and if the solution is a base, it will have a pH above 7 since the pH value is determined by the concentration of H+ and OH– ions.
Explanation:
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what human activities can redistribute carbon loads in the cycle so that global warming might slow down or decrease choose two different real world examples and explain the flux in carbon loads that would result from an increase in that human activity. make sure to explain what biological physical or geological process would shift the carbon load from one point in the cycle to another.
Answer:
Reducing the use of fossil fuels in vehicles.
Explanation:
Reducing the use of fossil fuels in vehicles and use of electric vehicles which reduces air pollution as a result decrease or slow down of global warming occur. Use of fossil fuels is the main reason for increasing carbon concentration in the environment. If more plants were planted around the world the high concentration of carbon decreases in the environment due t photosynthesis of plants. Avoid use of activities that increases the carbon concentration in the environment.