Answer:
Crossing two chickens heterozygous for the trait feather color, when brown feathers are dominant over red feathers, will produce offspring with brown and red feathers in a brown:red phenotypic ratio of 3:1.
Explanation:
Knowing that in chickens brown feathers are the expression of the dominant allele (B) and the recessive allele is red (b), crossing two heterozygous individuals (Bb) will result in offspring that are likely to have brown or red feathers.
The cross can be represented by a Punnett Square:
Bb X Bb cross
alleles B b
B BB Bb
b Bb bb
Where the result is:
Genotypes:
Bb, 50% BB, 25% bb, 25%Phenotypes:
Brown feathers, 75% Red feathers, 25%.In this case, the probability of having brown or red feathers is 3:1.
The diagram shows Mendels test for flower color he crossed a plant with white flowers with one that had purple flowers then he let the first-generation offspring pollinate to produce the seconde-generation off spring
Answer: recessive
Explanation:A P E X verified
If no energy is transferred, how much work is done?
Answer:
Explanation:The potential energy is converted to kinetic energy in the process. But I see no transfer of energy between the earth and the body.
And how does energy transfer takes place in case of negative work ? When a body is moved across a surface which has friction, the friction does negative work. Does it mean that a sort of energy transfer occurs between the surface (source) and the body (object
Darwin observed a variety of tortoises on the Galapagos Islands. These observations provided evidence for which of these statements?
A Species vary locally
B Species vary over time,
c Island species are identical to mainland species
DIsland species are unrelated to mainland species
Answer:
B) Species vary over time
Answer: Species vary over time!
Explanation:
I did it
How does a destructive force differ from a constructive force?
Answer:
Destructive Forces break down features on the Earth's surface. Constructive Forces build up features on the surface of the Earth.
Question 8 (1 point) A warm air mass that forms over land. It is dry, dense, and has high air pressure. This air mass forms when maritime tropical dries out Lesson 1.07 Maritime Polar Continental Polar Maritime Polar Maritime Tropical Maritime Tropical Continental Tropical Maritime Tropical O Continental Polar Maritime Tropical O Continental Tropical O Maritime Polar
Answer:
Continental Tropical
Explanation:
I did the test and got it correct
PLEASE HELP!!! I WILL GIVE BRAINIEST ANSWER!!! Compare the biomes of New York City and Seattle. Why are their biomes different?
Answer:
Because their different places so they have differencee
Explanation:
I NEED HELP
What animal adaption happened before the others? a.pex
A) Reproduction on land
B) Development of a coelom
C) Tissue development
D) Deuterostome development
Answer:
C tissue development
Explanation: tissue development is what happens before others
Carbon-14 has a half life of 5730 years, how many grams of a 4.0 g sample would be left after 3.5 half-lifes?
How would a bacteria explore a non-coding portion of DNA?
Explanation:
Non-coding DNA sequences are components of an organism's DNA that do not encode protein sequences. Some non-coding DNA is transcribed into functional non-coding RNA molecules (e.g. transfer RNA, ribosomal RNA, and regulatory RNAs). Other functions of non-coding DNA include the transcriptional and translational regulation of protein-coding sequences, scaffold attachment regions, origins of DNA replication, centromeres and telomeres. Its RNA counterpart is non-coding RNA.
The amount of non-coding DNA varies greatly among species. Often, only a small percentage of the genome is responsible for coding proteins, but an increasing percentage is being shown to have regulatory functions. When there is much non-coding DNA, a large proportion appears to have no biological function, as predicted in the 1960s. Since that time, this non-functional portion has controversially been called "junk DNA".[1]
The international Encyclopedia of DNA Elements (ENCODE) project uncovered, by direct biochemical approaches, that at least 80% of human genomic DNA has biochemical activity, which they defined as being transcribed, a definition not shared with most other biologists.[2] Though this was not necessarily unexpected due to previous decades of research discovering many functional non-coding regions,[3][4] some scientists criticized the conclusion for conflating biochemical activity with biological function.[5][6][7][8][9] Estimates for the biologically functional fraction of the human genome based on comparative genomics range between 8 and 15%.[10][11][12] However, others have argued against relying solely on estimates from comparative genomics due to its limited scope.[citation needed] Non-coding DNA has been found to be involved in epigenetic activity and complex networks of genetic interactions and is being explored in evolutionary developmental biology.[4][11][13][14]
Lactase is an enzyme that many different animals have that helps digest the sugar lactose Why can this enzyme be the same in different species?
0 Lactase is necessary for survival of all organisms
0 All living things share a common code-DNA
0 Lactase is not regulated by external environments.
It is not possible for it to be the same in different species
Answer:
All living things share a common code-DNA
Explanation:
Enzymes are proteinous substances, which like every other proteins are encoded by a genes. In the expression of these genes, a set of codons (three nucleotide base) called GENETIC CODE is used. ONE of the characteristics of this genetic code is that it is NEARLY UNIVERSAL meaning that the same genetic code is used by virtually all known living organism.
According to this question, lactase enzyme, which helps digest lactose sugar in organisms, is the same in different organisms. This is due to the fact that all living things share a common code-DNA e.g AUG codes for methionine in all organisms, hence, when these DNA undergoes expression, it yields the same products in different organisms.
Is the Sun a planet? Why or why not? (3-4 sentences)
Answer:
No
Explanation:
The Sun is a star there are lots of stars,but the Sun is the closest one to Earth.It made from gases and it always burning
Planets are:Mercury, Venus, Earth, Mars, Jupiter, Saturn, and Uranus
True or False. Crossing-over refers to the crossing over of genes in meiosis. This creates variation among organisms
Explanation:
It would be true because crossing over does happen in meiosis
Which soil horizon, also known as the zone of accumulation, is enriched in clay, iron oxides, silica, carbonate, and other materials?
A)
A Horizon
B)
B Horizon
C)
C Horizon
D)
O Horizon
E)
E Horizon
Answer:
B
Explanation:
Horizon is enriched in clay, iron oxides, silica, carbonate, or other material leached from overlying horizons. Horizon is known as the zone of accumulation.
No question, just answers
What is the difference between a detritivore and a decomposer?
While detritivores feed on dead organic matter, decomposers actually break down dead or decaying organisms.
What is the main difference between food chains and food webs?
Food webs are more complex than simple food chains.
Taj incorrectly states that autotrophs are also known as consumers that need to feed on other organisms, including plants and animals, to gain energy. Which of the following best describes consumers that feed on other organisms such as plants and animals for energy?
heterotrophs
Which of the following is the first trophic level in every ecosystem?
autotroph
What is the relationship between matter and energy in an ecosystem?
Matter and energy are cycled through the ecosystem.
Are the four daughter cells produced by meiosis identical or unique?
Answer:
i think it's meiosis identical but im not sure please tell me if it's right or not
Answer:
[tex]\boxed {\boxed {\sf Unique \ daughter \ cells}}[/tex]
Explanation:
There are two main types of cell division: mitosis and meiosis. Mitosis makes identical cells for growth and repair.
On the other hand, meiosis is used for sexual reproduction.
In this reproduction, one diploid cell produces 4 haploid gametes/sex cells, meaning they have half of the genetic information. This is so during fertilization, when a sperm and egg combine, the zygote will have a full set of chromosomes.
One of the most important parts of meiosis is called crossing over. In this step, the chromosomes exchange information and create totally unique chromosomes.
This is one reason why siblings, aside from identical twins, can look similar, but not identical!
All of the following are symptoms of schizophrenia except __________. delusions disturbed emotions hallucinations adaptive behavior
Answer:
adaptive behavior is correct
Explanation:
just took the quiz
According to the question, the correct option is an adaptive behaviour.
Adaptive behaviours include real-life skills such as grooming, getting dressed, avoiding danger, safe food handling, following school rules, etc.
What does adaptive behaviour mean?
Adaptive behaviour is described as the group of conceptual, social, and practical skills retained by individuals to enable them to function in their everyday lives.
Adaptive behaviour is a required diagnostic measure of all systems defining intellectual and developmental disabilities.
Thus, adaptive behaviour is not a symptom.
To learn more about adaptive behaviour click here:
https://brainly.com/question/22909098
what is the complementary DNA for TACGGCTTA
Answer: ATG CCG AAT
Explanation: In complementary DNA, you will want to flip the letters.
A=T
T=A
G=C
C=G
A will never match with C or G. Vice versa.
what characteristic do all minerals have
hi the answer is that minerals is from the earth
Answer:
Most minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.
Explanation:
. List the inputs and outputs of photosynthesis. What part(s) of the plant are responsible for taking in each of the inputs?
Answer:
Did you mean: List the inputs and outputs of photosynthesis. What parts) of the plant are responsible for taking in each of the inputs?Which statement best defines the relationship between work and energy?
Work can transfer energy between objects and increase radiant energy.
Work can transfer energy between objects and cause a change in the form of energy.
Work can transfer energy between objects and decrease nuclear energy
Work can transfer energy between objects and cause a change in the amount of total energy.
The statement that shows the relationship between work and energy is that; "work can transfer energy between objects and cause a change in the form of energy."
What is work and energy?
Work is done when the force applied moves a distance in the direction of the force while energy is the ability to do work. Energy and work have the same unit and the same dimension.
The statement that shows the relationship between work and energy is that; "work can transfer energy between objects and cause a change in the form of energy."
Learn more about energy: https://brainly.com/question/1932868
Answer:
its b :)
Explanation:
where should buildings be constructed if we want them to survive major earthquakes
Answer:
Engineers must design in structures that can absorb the energy of the waves throughout the height of the building.
Explanation:
Population
Time (Years)
What has happened to the population after year 10?
©
The population has reached carrying capacity
The population is declining due to a new predator
The population is increasing because more food became available
The population is remaining constant because the and death rate are equal
Answer:
A. The population has reached carrying capacity.
Explanation:
I majored in Biology
Which of the following biomolecules is NOT correctly paired with its monomer (subunit)?
Answer:
I think its proteins..good luck
What posture is a dog displaying if she is leaning away from your, body lowered, ears back, tail down, showing whites of her eyes and the corners of her mouth pulled back.
Answer: Fearful and worried posture
Explanation:
Since dogs cannot talk, their body languages are used to interpret whatever emotion or feeling they may be experiencing.
When a dog is afraid, she tries to look small. She lowers her body and and leans away so that her center of gravity is over her hind legs to make a quick retreat easy. She also puts her tail down and ears flattened back to her skull. Her eyes also look rounder than normal and she shows the whites of her eyes (whale eyes).
All these tell that a dog is scared and worried or feeling tense.
Answer:
Defensive Threat Posture
Explanation:
Whale eye (whites of eyes showing)
Tail down or fully tucked
Piloerection
Ears back or flatten against head
Pupils dilated
Corners of mouth pulled back
Body lowered
Body leaning backward
A defensive threat posture indicates a dog is being self-protective. This is seen in a dog who is fearful and would prefer to run away from the situation, but may bite if provoked or cornered. Stress signals were offered in the beginning, however ignored and the dog is showing extreme fear.
Create a sentence explaining how amino acids
form proteins.
Answer:
Proteins are the final products of the sequencing process that begins with cellular DNA information.
Explanation:
Proteins form structural and motor components in the cell as workhorses of the cell, and they serve as the catalysts for virtually every biochemical reaction in living things. This incredible array of features stems from a remarkably simple code that defines a greatly varied collection of structures.
During one part of the water cycle, heat from the Sun causes liquid water to change into water vapor, which rises into the atmosphere.
Which statement best describes the reverse of this process?
a) As liquid water falls from the atmosphere to land, it turns into a gas
b) As the Sun's rays warm solid ice, it begins to melt into liquid water.
c) As liquid water from streams and groundwater drains into large bodies of liquid water, it turns to gas.
d) As water vapor meets cooler air, it changes into droplets of liquid water that return to Earth's surface.
Answer:
d 4
Explanation:
Answer:
i think d idrk tho sorry
Explanation:
what are four things that cause weathering
Answer:
Rain, flood, wind, sunlight
Explanation:
Answer:
Well four things are frost weathering, thermal stress, salt wedging, and Biological Weathering.
Explanation: There are a few more, but you only needed four.
An animal cell with 28% water content is placed in 3 % sugar solution. What would be your observation?
Answer:
osmosis
Explanation:
Protein breaks down into
Answer:
amino acids
Explanation:
Proteins ingested in the diet are digested into amino acids or small peptides that can be absorbed by the intestine and transported in the blood.
Answer:
Mostly into carbohydrates and fats.
Explanation:
"They mostly break down carbohydrates and fats. Once a protein source reaches your stomach, hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids. Amino acids are joined together by peptides, which are broken by proteases" - Protein Digestion: Enzymes, Absorption, and Ways to Improve
"Dietary protein is a vital source of amino acids. Proteins ingested in the diet are digested into amino acids or small peptides that can be absorbed by the intestine and transported in the blood." - Proteins Are Degraded to Amino Acids - Biochemistry - NCBI
I made sure to give credit to the sources. Hopefully this helps!!!
Explain how and why weasels' coat color changes seasonally.
Answer:
Animals that live in areas that usually have a lot of snow in the winter often change their coats to match their surroundings. Some weasels have evolved so that in the autumn they moult their brown summer coat and change to a white version. In spring they reverse the process and return to the brown version
