Help me with this please!!
Black fur colour is controlled by a dominant allele, B, and brown fur color by it's recessive allele, b. This characteristic is NOT sex linked. Give the genotypes of the parents and offspring of a cross between a black male and a brown female that produces 1/2 black offspring and 1/2 brown offspring.
Show all steps in working of this problem.
Answers
Answer:
What are specialized cells
Bb and bb the genotypes of the parents and offspring of a cross between a black male and a brown female produce 1/2 black offspring and 1/2 brown offspring.
What is the dominant allele?The connection between two genetic variants is referred to as dominant. Each gene has two alleles that an individual inherits from each parent. One allele of a gene, known as the dominant gene, will be expressed if the alleles are different. The impact of the other allele, known as the recessive one, is concealed.
The Cross between parents is Bb x bb
Gametes- B and b
Offsprings- Bb, Bb, bb, bb
The crossing analysis is attached in the image below.
A person needs two copies of a recessive allele, one from each parent, in order for it to result in a recessive phenotype.
Therefore, Bb and bb the genotypes of the parents and offspring of a cross between a black male and a brown female produce 1/2 black offspring and 1/2 brown offspring.
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Related Questions
I need desperate help.
Answers
Answer:
Fish make up the largest group of vertebrates.
Explanation:
"Numerous" means a count of something. The second option is the only one that mentions a count of something so that is most likely the answer.
4. Which of the following best describes the growth of the population in the graph?
a
The population is undergoing logistic growth
b. The population is undergoing exponential growth
The population has reached its carrying capacity
d. The populations is being affected by limiting factors
Population Size
U
C.
Time
RESOURCE:
ASAP
Answers
Answer:c
Explanation:
Which of the following is NOT a
response that the body would have
to a stimuli?
A. physical response
B. chemical response
C. creating a feeling
D. evolving the body
Answers
Answer:
c.
Explanation:
Brain is considered as the centre of all senses,why?
Answers
Answer:
The human brain is the command center for the human nervous system. It receives signals from the body's sensory organs and outputs information to the muscles.
Answer:
It receives signals from the body's sensory organs and outputs information to the muscles
Explanation:
How do I describe chloroplast
Answers
Answer:
a plastid that contains chlorophyll and in which photosynthesis takes place.
or
a type of plastid that is involved in the synthesis and storage of foodstuffs
Explanation:
hope this helps :)
Answer:
Chloroplasts are/have
- Oval shaped
- filled with chlorophyll
- have a 2 membrane structure
Chloroplasts are special and unique structures found in plant cells that are king when it comes to turning sunlight into energy for the plant to use. (this process is called chlorophyl)
Hope this helped!
Label the following with
N (neutron), P (proton),
E (electron)
___Negative charge
___ Atomic number ___determination
___ Atomic mass determination
___ Involved in bonding
___ Positive charge
___ when gained or lost creates ions
___ Neutral charge
___ Found in nucleus
Answers
Answer:
E, P, N and P, E, P, E, N, N and P
Explanation:
I am pretty sure the answers would go like this (in the order you have here):
1. Electron (they have a negative charge)
2. P (The atomic number is determined by the number of protons)
3. N and P (The atomic mass is determined by how many Neutrons and Protons there are in the atom)
4. Electron (they are usually involved in bonding)
5. Proton (they have positive charge)
6. Electron (ions are created when an atom has gained or lost electrons)
7. Neutron (they are neutral)
8. Both Neutrons and Protons (they stick together inside the nucleus)
I am not entirely sure why the atomic number determination has 2 blanks since it is only determined by protons, but I hope this helps. I havent studied this for a while but those are the best answers I can provide and have checked them with my books so I hope they are correct. Good Luck!
Dragon
Describe the process of cell division in a plant cell.
Answers
Answer:
Cytokinesis in a plant cell: the cell plate forms down the middle of the cell, creating a new wall that partitions it in two. Cytokinesis, the division of the cytoplasm to form two new cells, overlaps with the final stages of mitosis.
Explanation:
1. What do you notice about the angle of Earth?
2. How do you think this affects the seasons in different hemispheres (halves) of the world?
Answers
Answer:
1. Today instead of rotating upright, The earth's axis is tilted 23.5 degrees. The angle varies a little over time, but the gravitational pull of the moon prevents it from shifting by more than a degree so. This tilt is what gives us seasons.
2.The cooling effects of more indirect sunlight cause autumn and winter. Because of the earth's approximately 23.5° tilt, the season in the northern and southern hemispheres reversed, about six months apart from each other.
The illustration below represents____,
which is responsible for genetic diversity.
Answers
Answer: Crossing over
Explanation: This is what a crossing over gene looks like it starts together and separates here is evidence below ⬇️
The illustration below represents the crossing over stage in meiotic cell division which is responsible for the genetic diversity in organisms. Thus, the correct option is B.
What is Crossing over?Meiosis is the type of cell division during which the chromosome number in the daughter cells become half of that present in the parent cells from which they are produced. From one parent cell four daughter cells are formed in meiosis.
Chromosomes forms the chromatids in the cell which form tetravalent with the non-sister chromatids of the homologous chromosomes. This stage is called crossing over where the genetic material present in each of the chromatids are exchanged which results into genetic diversity in a species. After the crossing over stage, the chromatids separate from each other and goes to different daughter cells.
Therefore, the correct option is B.
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specific amino acids are attached to trna molecules by:
Answers
Answer: The energy of ATP hydrolysis is used to attach each amino acid to its tRNA molecule in a high-energy linkage. The amino acid is first activated through the linkage of its carboxyl group directly to AMP forming an adenylated amino acid; this linkage is driven by the hydrolysis of the ATP molecule that donates the AMP.
Explanation:
brainliest goes to best answer! Explain the flow of energy as it is transformed through photosynthesis AND aerobic cellular respiration.
Be sure to explain how energy is processed and changed as it passes through and between each process.
EX: Stored energy in gas is converted to heat when you light the stove. This heat is transferred to the food as heat energy while it cooks.
Answers
The correct order of flow of energy and its conversion is
Light energyChemical energyPotential and Kinetic energyDuring photosynthesis, plants converts light energy from the Sun into
chemical energy in the form of glucose. Cellular respiration involves the
conversion of chemical energy from glucose into potential and kinetic
energy by body cells
The chemical energy from glucose is converted into ATP which is another
form of chemical energy.The ATP formed helps cells perform various
activities and state of rest such as sleeping in the body through the
conversion of the chemical energy into kinetic and potential energy
respectively.
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if a plant is not green (does not contain chlorophyll) can it do photosynthesis? why or why not?
Answers
Answer:
No, it cannot carry out photosynthesis because the plant will not be able to absorb light as it does not have chlorophyll.
Explaination:
Chlorophyll in plants is used for absorbing energy from light. And, in photosynthesis, light/sunlight is one of the main factors needed, so as the plant cannot absorb light, photosynthesis can't take place.
Most plants and animals in the world reproduce by sexual reproduction. Which process is responsible for the genetic variation found in organisms that reproduce this way?
Answers
I guess the answer would be because of meiosis in meiosis this is because in prophase the two chromosomes cross over and the genes are mixed leading a random mix of characteristics. Mutations can also cause these differences so the offspring are different and not the exact copy as parents.
I hope this helps ❤️
Examine the flow chart above depicting the job of a gene known as p53. It plays an important role during the G2 checkpoint of cell cycle regulation. In 4-6 sentences, explain why p53 is often called "The Guardian of the Genome". Is p53 an oncogene (a gene that stimulates the growth of cancer cells) or a tumor suppressor gene (a gene that turns off the growth of cancer cells)? Explain your reasoning.
Answers
The p53 protein is known as the guardian of the genome because this protein prevents errors during DNA replication. It is a tumor suppressor gene.
Tumor suppressor genesTumor suppressor genes are genes that play fundamental cellular roles and prevent cell uncontrolled growth.
A tumor suppressor gene can repair errors that occurred during DNA replication, slow down the cycle of cell division, trigger programmed cell death, etc.
The p53 acts to control cell division and cell death, thereby avoiding the emergence of cancer cells.
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why does exposure to high temperatures cause an enzyme to lose its biological properties?
Answers
Answer:
Shape of active site changes that's why
Enzymes are affected by temperature. So, as temperature increases, enzymes activities also increases, till optimum temperature is reached. If it goes above the optimum temp, the enzymes becomes denatured or can't function anymore due to change in its active site.
70 POINTS
Select the statement that best applies to the image.
The force needed to move the crate is greater if it is full of items than if it is empty.
The force needed to move the crate is smaller if the crate is full than if it is empty.
The force needed to move the crate is the same whether it is empty or full of objects.
The force needed to move the crate is smallest when there are just a few items inside it.
Answers
Answer:
The force needed to move the crate is greater if it is full of items than if it is empty.
how long does it take for a humming bird to flap its wings once?
Answers
Answer:
not really sure but i know it takes 10-15 times per second. also you might have to do some math i hope this helped a bit and sorry i couldn't give you an exact answer
The area of the continental US most likely to have volcanic activity is the ______________
Answers
Answer:
Alaska
Explanation:
Alaska has the most active volcanos in America.
Answer:
Aleutian Islands
Explanation:
Pick the odd one out from each of the groups given below on the basis of respiratory organs. Give
reason for your answer.
(a) Cockroach, grasshopper, snail, ant
(b) Lizard, cow, earthworm, snake
(c) Crocodile, whale, dolphin, fish
fasst answer
if ur answering correctly i will sure mark u as a brainlist plz guisss
Answers
Answer:
a
Explanation:
because they are all arthropods
what are the advantages of using an electron transport chain
Answers
Answer: The advantages of electron transport chains are directed
towards living things. Electron transport chains permit the cell to take energy from harvesting electrons .
Explanation: Read above.
Small aquatic organisms, such as coral, are the producers of the ocean. Please select the best answer from the choices provided T F.
Answers
The marine invertebrates of phylum Cnidaria are called corals. Corals are important as they build reefs in oceans and feed on planktons.
The given statement is :
True
The position of corals can be explained as:
The corals are both a primary producer as well as the consumer.They take energy from algae through the mutual relation between both organisms. The corals feed on planktons, zooplanktons and phytoplankton for energy so they are consumers.The algae living in coral make food for them and corals produce oxygen.
Therefore, corals are producers.
To learn more about corals follow the link:
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Answer:
T
Explanation:
Edge 2022 , trust the process
Do you think their ideas are enough to describe who a human person is? do you think there are other ways to describe the human person?
Answers
Answer: yes
Explanation: a person has a meaning, a meaning to live a reason
Suggest and explain what will happen to the population of
zooplankton in March and April.
Answers
A heterozygous gray (two genes are involved) cat is crossed with a cat that is heterozygous for these two genes. What is the probability of a black kitten? What is a possible genotype of a black kitten? thanks
Answers
Answer:50% chance, and the genotype would be heterozygous
Explanation:
G=gray r=black
G r
G GG Gr
r Gr rr
I’ll give brainiest. What’s the scientific name for coyote
Answers
Answer:
Canis latrans
Explanation:
CALA COMMON NAMES : coyote brush wolf prairie wolf American jackal TAXONOMY : The currently accepted scientific name for the coyote is Canis latrans Say. It is in the family Canidae.
Hope this helps
Have a great day
~Zero~
digestion begins in the mouth and continues through the gi tract. where does most digestion and absorption of nutrients take place?
Answers
Answer:
Small Intestine
Explanation:
Most digestion and absorption of nutrients take place in the small intestine.
How do foods digest in humans?The digestion of food materials starts from the mouth, depending on the class of the food.
The digestion is aided by a variety of enzymes. From the mouth, digestion continues through the gastrointestinal tract vis a vis the esophagus, the stomach, large, and the small intestine.
However, most digestive activities happen in the small intestine as well as most absorption of nutrients into the bloodstream.
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One difference between cell division in plant cells and in animal cells is that plant cells have
centromeres
chromatin
centrioles
a cell plate
Answers
plant cells do not have centrioles
PLEASE HELP ME THIS IS DUE TONIGHT ;-; ILL MARK U BRAINLIEST
In three to five sentences, describe the advantages and disadvantages of these maps in modeling mitosis.
Answers
Answer:
Maps have the advantage of objectivity and presentation of all phases of mitosis, but their disadvantage is the suppression of information, which can confuse students. A scientific model (or map) must be able to present a scientific process or element as it actually occurs, or as close to it
Explanation:
what process can lead to an individual having too many or two few chromosomes?
Answers
The process which can lead to an individual having too many or two few
chromosome is as a result of mutation which occurs during meiosis.
Meiosis is the type of cell division which occurs in reproduction and the
production of sex cells such as sperm and egg. This process results in the
production of four unique daughter cells.
The homologous chromosomes not being properly distributed in the
process could lead to such types of error.
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What human activity contributes to air pollution?
construction
reforestation
habitat restoration
dam development
Answers
Answer:
construction
Explanation:
because more pollution is produced when the construction is in process and the pollutions are
1.noise pollution
2.air pollution etc...
The human activity that results in air pollution is construction. Please find how construction results in air pollution below.
What is air pollution?Air pollution is the release of toxic substances called pollutants into the atmosphere.
Pollutants can be released into the atmosphere as a result of anthropogenic or human activities. These activities include:
ConstructionMiningFossil burningTherefore, the human activity that results in air pollution is construction.
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