Answer:
The double recombinant individuals are less frequent ---> Abc and aBC
Explanation:
We can know if genes are linked, by looking at the progeny distribution. In a tri-hybrid cross, If individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1:1:1:1:1. If we observe a different distribution, meaning that phenotypes appear in different proportions, we can assume that genes are linked in the heterozygote parent.
We can recognize the parental gametes because their phenotypes are the most frequent in the descendants, while the double recombinants are the less frequent. Finally, the simple recombinant gametes are the ones with intermediate phenotypes frequencies.
In the present example, the phenotypic ratio shows different proportions than the expected ones if they were not linked.
We can recognize the parental gametes in the descendants because their phenotypes are the most frequent,
ABC and abc 600while the double recombinants are less frequent.
Abc and aBC 50And simple recombinant gametes produced by the cross, which frequencies are intermediate.
AbC and aBc 200 ABc and abC 150a. Which phenotype represents the double crossovers
The double recombinants are less frequent ---> Abc and aBC
DNA is wrapped together to form structures called what?
-Chloroplasts
-Chloroplhyll
-Chromosomes
Answer:
Chromosomes
Explanation:
Chlorophyll and chloroplasts are both something plants create.
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. So chromosomes
Binding of the lac repressor protein to the lac operator is regulated allosterically. This means that the presence of a specific small molecule that binds to the lac repressor controls whether the repressor can bind to the lac operator, and therefore whether the operon is turned on or off. Can you sort the following conditions based on whether they are associated with the lac operon being turned ON or turned OFF?
a. Allolactose is absent
b. Allolactose is present
c. RNA polymerase cannot transcribe the operan genes
d. The lac repressor protein cannot bind to the lac operator
Answer:
a. OFF
b. ON
c. OFF
d. ON
Explanation:
Allosteric regulation is a process by which a particular molecule activates or inhibits an enzyme, by binding to a site different from the active site of the enzyme. Allolactose is a disaccharide that binds to the allosteric site of the lac repressor protein, triggering a conformational change in the protein that prevents the binding of this repressor to DNA. Moreover, RNA polymerase (RNA pol) is an enzyme required for the process of transcription, and therefore when this enzyme cannot bind to operon genes the lac operon is being turned OFF. Finally, the lac operator is a nucleotide sequence where RNA pol binds, and the lac repressor binds to the lac operator in order to block the transcription of the lac operon.
All camels are basically similar in structure. They have developed adaptations for coping with both heat and dehydration.
Which of the following does not benefit the camel as a means of preventing dehydration?
a.Camels can extract water from their solid wastes.
b.Camels' ears are lined with fur to keep out sand and other blowing matter.
c.Their kidneys are capable of concentrating urine to reduce water loss
d.Camels are able to locate water in any environment.
Answer: b
Explanation:
Camels ears are lined with fur to keep out sand and other blowing matter
The Cambridge family includes the unusually shaped Arabian camel (Camelus dromedarius), also referred to as the one-humped camel. This animal is perfectly suited to the harsh desert climate and high levels of heat stress. Thus, option B is correct.
What camels are adaptations for heat and dehydration?Camels have evolved to survive in extremely hot and cold climates.In contrast to many other mammals, camels store the majority of their body fat in their humps, which allows for better thermoregulation. It makes it easier for them to release heat from their body in hotter climates. Camels rarely perspire.
Camels are ideally suited for desert survival. They have developed wide, flat feet to disperse their weight across the sand, among other adaptations. Thin fur everywhere to allow for rapid heat loss, and dense fur on the top of the body for shading.
Therefore, The kidney may be able to retain water if the generation of cholesterol is reduced. Camels produce pee that is highly concentrated, retaining the maximum amount of water.
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Which of the following accurately describes an example of a vestigial structure?
After the loss of a single eye, with one eye still present, a patient is still able to see with one eye. The patient complains of
reduced vision and depth perception after recovery.
A patient is having severe abdominal pain due to a ruptured appendix. The patient has an appendectomy, in which the
appendix is removed. The patient recovers and notices no life changes due to this surgery.
O A patient has a benign mass on the head of the pancreas. The mass is removed, along with a portion of the pancreas. This
results in reduced insulin production in the patient, causing them to be incapable of using glucose for energy, without the
aid of medication. The patient will be required to take an insulin shot once daily.
O A patient has heart disease, and therefore needs a heart transplant. The patient's heart is then removed and replaced with
a functioning mechanical heart. The patient will remain on organ transplant rejection pills for the remainder of his/her life.
Answer:
A patient is having severe abdominal pain due to a ruptured appendix. The patient has an appendectomy, in which the
appendix is removed. The patient recovers and notices no life changes due to this surgery.
Please answer fast!
Answer:
C
Explanation:
What should an ecologist measure in order to construct a pyramid of biomass for an ecosystem? A. the biomass in each trophic level of the food web B. the total mass of all the organisms in a representative area of the ecosystem C. the total mass of all the organisms in the ecosystem D. the number of organisms in each trophic level of the food web
Answer: When constructing a pyramid of biomass, the ecologist will produce a presentation of B.) the total mass off all the organisms in a representative area of the ecosystem.
Explanation: This type of ecological pyramid is determined by collecting organisms in each trophic level separately and finding their dry weight.
hope that helped! (:
Hi,
An ecologist measures in order to construct a pyramid of biomass for an ecosystem the total mass of all the organisms in a representative area of the ecosystem.
Therefore, Option B is correct.
Hope it helps you...
Answered by Benjemin ☺️
✅
what is the difference between a disease and an infection
Answer:
disease occur when the cells in your body are damaged and multiplies and infection occurs when bacteria is there.
hopefully this helps.
URGENT PLEASEEEE
How and where is starch stored in the red cedar oak tree
ill mark brainliest to first good answer
Answer:
They are large molecules that blind readily with proteins , cellulose, starches and minerals.
Explanation:
it hides into leather
A scientist noticed that in acidic pond water some salamanders developed with curved spines. This was an example of a(n)
А
research
o
B
inference.
о
С
observation
D
hypothesis
Answer:
С observation
Explanation:
This mode of investigation is an example of observation.
Observations are carried out using our senses and keen inquisitiveness. It can take place within a short period of time or an extended duration.
So; noticing the change in shape of the salamanders is making an observation.
Our sight, smell, taste e.tc are all observational tools.
Answer:
С. observation
Explanation:
Hope this will help
The...........is also known as the tympanum.
1)eardrum
2)stapes
3)cochlea
4)malleus
Answer and I will give you brainiliest
Answer:
1
djdhdbbdbdbsbdbdbsb
When did time begin?
Answer:
13.7 billion years ago
Explanation:
Answer:
That was billions of years ago.
Every cell has 3 billion DNA base pairs. How does this long strand of DNA fit into a nucleus?
Answer: These DNA though is long, it is small. it would be half-squished in the nucleus. Because it is half squished, that is why they can be infected by viruses.
This answer not be correct, by the book i read said so.
Can buoyancy act between bodies in contact or not in contact??
Answer:
Buoyancy is a force. It is an contact force. But why? Because it is a force that acts between two objects, opposite a body force.10. Imagine a seesaw, like on a children's playground. Which of the following drawings of a seesaw best represents equilibrium? Explain. help pleaseee
Answer:
the first one
Explanation:
equilibrium- a state of physical balance.
so the first one looks the most balanced on both sides
Also if you look up "equilibrium seesaw" you see pictures that look similar to the first one
What are the consequences of not having tall trees in the Great Plains?
Answer:
High evaporation and low rainfall makes it difficult for trees to grow on the Great Plains. Only along the river bottoms can most trees grow successfully in the natural way.
Explanation:
g Which on the list below is allowed in a Biohazardous waste ility of your PI or LSC to provide you with agent specific training in your lab: A. True B. False Work with microorganisms not known to cause disease in healthy adults is done at: A. Bio safety level 4 B. Bio safety level 3 C. Bio safety level 2 D. Bio safety level 1 Biohazardous waste boxes are provided by: A. Discounted pricing by Sourcing B. Work order by Facilities C. Custodial staff or EHS D. None of the above It is ok to use fuming chemicals in the biosafety cabinet because they are filtered and the air is cleaned before leaving the building: A. True B. False Before beginning work inside a Biological Safety Cabinet do all the following except: A. Disinfect the inside surface of the cabinet B. Turn on blower and let cabinet run for 15 minutes prior to work commencing C. Fill the cabinet with equipment and obstruct air flow D. All of the above You self-transport out of the USA all research samples without documentation: A. True B. False
Answer:
True
False
Bio safety level 1
Custodial staff or EHS
True
All of above
True
Explanation:
Micro organisms are little organisms which are not seen by naked eyes. They can harm human and cause diseases in humans. The statement is true.
What is one of the causes of mechanical weathering?
A. acid rain
B. oodation
C. animal actions
D. carbon dioxide
Answer:
answer is A hope it helps if it dont what can i help you with later.
Explanation:
How can you use genetics to study human inheritance?
Answer:
by analyzing how genes influence the development of phenotypic traits, i.e., by determining the association between phenotypic traits and changes in DNA sequence
Explanation:
Genetics is a discipline that studies how genetic variation, i.e., the variation in the Deoxiriibunicleinc acid (DNA) molecule, is associated with the transmission of heredity, and how the environment influences this process. The DNA is a molecule that carries the instructions to perform all metabolic functions (eg., reproduction, development, growth, etc). Thus, advancements in genetics enabled us to decipher how phenotypic traits pass from parents/ancestors to their offspring/descendence. Genes are segments of DNA that carry the information (genetic information) to determine each phenotypic trait. During reproduction, genes are passed from one generation to the next, thereby transmitting this information across generations.
Help please with 4 super easy
Answer:
A Air pressure
Explanation:
How does cell division relate to the process of asexual reproduction ?
Answer:
sexual reproduction occurs by cell division during mitosis to produce two or more genetically identical offspring. Sexual reproduction occurs by the release of haploid gametes (e.g., sperm and egg cells) that fuse to produce a zygote with genetic characteristics contributed by both of the parent organisms.
Explanation:
hope you like my ans
Helppp me!!!!! ASAP
What was difficult about measuring the 3x5 card? Why?
Answer:
can you give me some answers
Explanation:
interpreting graphics the biodiversity hot spots shown in figure 9 share several characteristics besides a great number of species. look at the map, and name many as many shared characteristics as you can.
Which of the following cell types is haploid?
O body cell
O sperm cell
O skin cell
O liver cell
Answer: sperm cell
Explanation: haploids only contain one set of chromosomes (not paired)
As part of a forensic analysis, you have been asked to determine an individual's ancestry using skeletal indicators. The metric measurements you collect indicate that the individual is of European ancestry, but you see several nonmetric traits in the cranium that are typically found in individuals of Asian ancestry. Why might the two methods give different results
Answer:
Due to difference in the methods that is used for analysis.
Explanation:
The two methods give different results because we used two different types of measurements i. e. metric measurement and nonmetric traits. In the metric measurement, we calculate the quantitative character of an individual that gives information about the current status of an individual, while on the other hand, in non-metric traits refers to the method which is used to evaluate genetic connections within and between populations that were present in the past.
What are the products when a DNA molecule replicates?
A two molecules of DNA each made of a paired sequence of bases
B two molecules of DNA each made of a paired sequence of nucleotides
C two strands of DNA each made of a paired sequence of bases
D two strands of DNA each made of a paired sequence of nucleotides
(Its NOT c.)
The products when a DNA molecule replicates are two molecules of DNA each made of a paired sequence of nucleotides. The correct option is B.
What is DNA replication?A double-stranded DNA molecule is copied to create two identical DNA molecules through the process of DNA replication.
Because every time a cell splits, the two new daughter cells must have the same genetic material, or DNA, as the parent cell, replication is a crucial process.
Before dividing, cells must copy their DNA. This promotes successful inheritance of genetic features by giving each daughter cell a copy of the genome.
The fundamental mechanism of DNA replication is similar across all organisms, making it a crucial operation.
Two DNA molecules, each consisting of a paired sequence of nucleotides, are produced when a DNA molecule duplicates.
Thus, the correct option is B.
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REWORD THIS IN YOUR OWN WORDS!
They are eukaryotic, which means they have a nucleus. Most have mitochondria. They can be parasites. They all prefer aquatic or moist environments.
Answer:
Eukaryotic organisms have no nucleus and prefer aquatic or moist environments. Interestingly, some are parasites, and some do not have mitochondria.
Explanation:
You may need to add some more sentences to better link these two together.
Question 16 (2 points)
If a wave is traveling at a constant speed, and the frequency increases, what would happen to the wavelength? (2 points)
Oa
It would increase.
Oь
It would decrease.
Ос
It would remain constant.
Od
It would drop to zero.
Answer:
A
Explanation:
When frequency increases so does the wavelength
Answer:
The correct answer is B. It would decrease.
Explanation:
I chose answer A. on my test and got it wrong. The correct answer was shown to me as B. Good Luck!!
What affect do you think a locust swarm would have on the flow of energy through the food web when they pass through an area?
discuss why apes are considered the most closely related organisms to humans. Use evidence to back up your answer.
Answer:
Apes are considered the most closely related organisms to humans because we share so much dna. For example, we share 99% of our DNA with Chimpanzees. On average, human beings share 65% of our dna with other mammals but apes are a much higher percentage, on average in the higher 90's.
Explanation: