The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism's DNA that create diversity within a population by introducing new alleles.
In rabbits, spotted coat (S) is dominant to solid color (s) and black (B) is dominant to brown (b). A true-breeding black spotted rabbit is mated to a true-breeding brown solid rabbit to produce a heterozygous F1 generation. Two F1 individuals are mated, and you do not see a 9:3:3:1 (black spotted: black solid: brown spotted: brown solid) ratio of offspring, but instead see that almost all offspring are a non-recombinant phenotype. This tells you that
Answer:
Epistasis effect result into these offspring
Explanation:
Given
spotted coat (S) is dominant to solid color (s) and black (B) is dominant to brown (b)
Genotype of true-breeding black spotted rabbit BBSS
Genotype of true-breeding brown solid rabbit bbss
Genotype of offspring BbSs
In normal crossing between BbSs and BbSs offspring of F1, should produce offspring in the ratio 9:3:3:1
But it does not happens in this case the simple reason could be presence of Epistasis in which the alleles assort independently but do not express themselves because of the following reasons -
a) Interaction between two or more loci thereby resulting into new phenotypes
b) An allele at one locus masks effects of other allele at one or more loci
c) Allele at one locus modifies the effects of alleles at one or more other loci
Which of the following geologic processes occurs in the shortest amount of time?
A. the erosion of a river canyon
B. separation of continents
C. the formation of an island chain
D. an earthquake
Answer:
an earthquake
In order to maintain homeostasis, it is most important for an animal to be able to ?
F increase its prey population
O respond to its environment
H change its habitat
o hide from its predators
Answer:
respond to its environment
Explanation:
What two types of consumers are missing from this pyramid?
Please help I need to turn it in today !!!!
Answer:
decomposers and omnivores
Explanation:
This is a question that has been confusing - In addition to carbon dioxide, what other two ingredients does a plant need for photosynthesis?
Answer:
Carbon dioxide, water and sunlight
Answer:
water and sunlight
Explanation:
What’s your favorite car first to answer gets brainliest
Answer:
Lamborghini
I don't know if I spelt it right
Answer: It has to be the Lexus is500 or the Acura Tlx
Explanation:
which statement is correct about the relationship between plants and animals
A.) plants depend only on food
B.) animals depend only on plants for food
C.) plants do not depend on animals to survive
D.) plants and animals depend on matter produced by the other to survive
Answer:
hm id say D tell me if im wrong
Answer:
D
heres why because how do we breath plants and some plants are food.
Summarize the 3 trends in human population
Answer:
Population trend refers to changes over time and can include changes in ranging behavior (e.g., distance and route) and distribution, biogeography (e.g., size of population) and life-history (e.g., birth and death rates).
Herbivores are also called _________________________.
Answer:
fruitarian, phytophage , vegan, vegetarian , lactovegetarian , or lactarian
Explanation:
I don't know what you're looking for, but I'm pretty sure that all these are basically the same thing as herbivores, correct me if I'm wrong
What is Florida’s most popular gamefish
Answer:
Sailfish
Explanation:
One of Florida's most popular gamefish is the Sailfish.
Water reacts with minerals in some rocks and very slowly dissolves the rock. What type of weathering does this demonstrate?
Answer:
Salt wedging
Explanation:
Salt wedging is a natural phenomenon which occurs in rocks and stones. It is a physical weathering process. It is a process by which water enters into the small cracks on the rocks and form salt like NaCl and thereby enlarging the cracks.
Most water contains dissolved salts and when water enters into the small cracks of the rocks, the salt begins to grow and it exerts pressures on the walls of the crack thereby enlarging the cracks.
This type of phenomenon is mostly seen near the seacoast and in the arid regions.
Thus water reacts with the minerals in the rock and slowly dissolves the rock in salt wedging weathering process.
When identifying the agent responsible for causing a disease, why is evaluation of colony morphology not enough?
Answer:
Some infectious diseases are distinctive enough to be identified clinically. ... Infections may be caused by bacteria, viruses, fungi, and parasites. ... Microbial Identification: Colony and cellular morphology may permit preliminary ... Diagnostic medical microbiology is the discipline that identifies etiologic agents of disease.
Explanation:
Microorganisms have antigens present on their surface, Antigen tests detect the presence of a microorganism directly so that doctors can diagnose an infection quickly, without waiting for a person to produce antibodies in response to the microorganism.
Evaluation of colony morphology is not enough as it is not a definitive test. colonies of different bacteria can look the same, so it can help narrow.
What is antigen tests?An antigen test is an immunoassays test used for the detection of a specific viral antigen that indicates current viral infections.
Hence, Antigen tests detect the presence of a microorganism whereas, Evaluation of colony morphology is not enough as it is not a definitive test.
To learn more about the Antigen click here
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What makes it hard for an astronaut to breathe in space ?
they need a oxegen tank cause you can’t breathe in space there’s no air cause there’s no trees so it’s like scuba diving you can’t breathe with out a oxygen supply and it might be uncomfor table and even few 30 mins you have to get a new oxygen tank (sorry if I’m wrong :clownface: )
Please help i am giving away brainiliest
Describe the Lysogenic cycle.
No dam links
Answer:
Here ya go
Explanation:
The lysogenic cycle, is one of two cycles of viral reproduction. Lysogeny is characterized by integration of the bacteriophage nucleic acid into the host bacterium's genome or formation of a circular replicon in the bacterial cytoplasm. In some interactions between lysogenic phages and bacteria, the lysogenic conversion may occur, which can also be called phage conversion.
Which of the following best describes where life is found around the world and why we find certain animals on certain continents and islands?
Question 4 options:
Fossils
Carbon Flow Dynamics
DNA sequences
Biogeography
Answer:
biogeography is the answer
Explain how a school bus uses all of these energy types.
-Mechanical
-Chemical
-Electrical
-Thermal
Answer:
thermal
Explanation:
the use of fuel, the fuel move and convert to fire by the help of the plug which put a spark to mix with the fuel to enable movement
Answer:
electrónico como comutadora
A 35-year-old woman comes to her dentist complaining of tenderness and pain in her cheek near the parotid gland, as well as bad breath and a foul-tasting mouth at meal times. A radiopaque fluid is injected into the parotid duct system through cannulation, and this sialography of the parotid duct confirms blockage by a calculus (sialolith). What muscle, through which the parotid duct passes, is most likely causing the stenosis where the sialolith now resides, blocking the drainage of the parotid duct
Answer:
A Buccinator. I hope this helps.
Explanation:
Which is the most likely result if the Ubx gene was activated either before or after it normally is activated in the sequence of Hox gene expression?
A. The insect develops slightly shorter or longer abdominal legs.
B. The insect develops normal body parts at either a slower or more rapid rate.
C. The insect develops normal body parts but in an altered time sequence.
D. The insect develops legs in other parts of its body.
Answer:
D. The insect develops legs in other parts of its body.
Explanation:
HOX genes, also known as homeotic genes, are evolutionarily conserved genes (containing homeobox sequences) that encode master regulators of embryonic development in animals. Hox genes modulate the body plan of an embryo along the head-tail axis. In general, these genes are arranged in the same order as they are transcriptionally expressed along the anteroposterior body axis. Moreover, Ultrabithorax (Ubx) is a Hox gene that is responsible for the proper development of the third thoracic segment in insects. In Drosophila, it has been shown that different segments of the leg regulate their size in response to Ubx expression.
A scientist is studying a substance that is cycled through ecosystems. Which of the following substances might the scientist be studying?
soil
copper
glucose
nitrogen
Will report scammers so pls just help me out
Please help biology
Answer: down
Explanation: bio teacher here
Water that reaches the ground and moves horizontally towards rivers, streams, and lakes is called runoff.
A. True
B. False
Answer:
A. True
Explanation:
flow off a hill slope directly to a stream in the form of runoff, or it may flows downward through the unsaturated zone to reach the water table. The area at the stream or lake to which the groundwater is flowing. Recall that water is flowing in pores where there is friction, which means it takes work to move the water.
the ? is so big so i can’t take the full picture but if you can help i’ll really appreciate that
using the graph, the temperature seasonal force from the other Forest biomes. choose all the apply
A) the temperature seasonal Forest averages 100 to 200 cm rainfall/year
B) the temperature seasonal Forest is cooler and wetter than the tropical rainforest
C) the temperature seasonal Forest has warmer average temperatures than the Boreal forest
D) the temperature seasonal rainforest has similar temperatures but less rain than the temperate rainfores
E) the temperature seasonal rainforest has similar rainfall to the Boreal and tropical seasonal rainforest, but is much warmer than either one
Answer:
The correct answer is - A and C,
Explanation:
According to the graph, the following conditions are matched correctly with the temperature seasonal forest with other biomes:
The temperature seasonal forest has the precipitation range from 50 cm to 250 cm rainfall per year approximately. The average rainfall from this would be 150 cm/year or between 100 to 200 cm per year.
B. the temperature seasonal forest has a temperature between 15 degrees Celsius to 20 degrees celsius which is warmer than the boreal forest that has a temperature between 0 to 15 degrees Celsius approximately.
Answer:
A, C, D
Explanation:
PLSSS HELP IMMEDIATELY!!!!! i need help rn!! only help if u know, i’ll give brainiest if u don’t leave a link
Answer:
Its keen eye sight helps it to see prey from the sky
Explanation:
Second option, doesn't make sense because their white and brown feathers aren't used for camoflouge
Third option, bald eagles fly not swim
Fourth option, bald eagles use their beaks for critical tasks, such as building nests, catching food and preening.
Some flowers show incomplete dominance. If RR = white and R'R' = red, which phenotypic ratio would
be expected in the o spring of two pink flowers?
Answer:
1 red: 2 pink: 1 white
0 red: 4 pink: 0 white would be the phenotypic ratio expected in the o spring of two pink flowers. So, the correct option is (D).
What is Phenotypic ratio?Phenotypic ratio defined as the relative number of offspring expressing a particular trait or combination of traits, which can be determined by performing a test cross and the frequency of the trait or trait combinations being expressed depending on the genotype of the offspring can be identified.
Phenotypic ratio is expressed as the ratio of different phenotypes present in the progeny of a cross where the ratios are numerical comparisons. For example, if one has three mangoes and two oranges, the ratio of mangoes to oranges will be 3:2.
For above given information, if we cross RR which is white with R'R' which is red, we will get 4RR' offspring which are pink in color. then the ratio will be 0 red: 4 pink: 0 white.
Thus, 0 red: 4 pink: 0 white would be the phenotypic ratio expected in the o spring of two pink flowers. So, the correct option is (D).
Learn more about Phenotypic ratio, here:
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Which of the following is NOT evidence of evolution?
Question 2 options:
Fossils
Carbon Flow Dynamics
DNA Sequences
Biogeography
Answer: Carbon flow dynamics
Explanation:
A black chicken and a white chicken are crossed. What is the probability that they will have erminette chicks?
Answer:
[tex]Probability = 100\%[/tex]
Explanation:
Given
Crossing of a black chicken and a white chicken
Required
The probability of having erminette chicks
The genotype of a black chicken is represented as: BB
The genotype of a white chicken is represented as: WW
The genotype of an erminette chicken is represented as: BW
Using a Punnett square, we have:
[tex]\begin{array}{ccc}{} & {B} & {B} & {W} & {BW} & {BW} & {W} & {BW} & {BW}\ \end{array}[/tex]
The result of crossing the two chicken gives 4 BW out of a total of 4
i.e 4 erminette chickens out of 4 possible chickens
So, the probability is:
[tex]Probability = \frac{4}{4}[/tex]
[tex]Probability = 1[/tex]
Represent as percentage:
[tex]Probability = 100\%[/tex]
of the following are abiotic factors in an ecosystem except _______.
Select one:
a.
types of minerals
b.
ocean currents
c.
types of bacteria
d.
temperature
I mark Branliest for the correct answer quickly please listen to me Eyes Blue
Answer:
1(i think)
Explanation:
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus. The gel-like matrix in which the nuclear components are suspended is the nucleoplasm.
Please Help I will Mark Branliest for first answer Please
Answer:
to break down waste and worn-out cell parts
Explanation: