In a species of Asclepias (milkweeds) there are two alleles of a gene involved in the synthesis of cardenolides. One allele results in normal synthesis of these molecules, while the other allele prevents synthesis from occurring. Individuals who are heterozygous for this gene produce intermediate amounts of cardenolides. In a population of Asclepias where both alleles of the cardenolide synthesis allele are present the following phenotypes were observed:
Normal cardenolide concentration: 241
Intermediate cardenolide concentration: 720
No cardenolides: 39
What are the expected phenotypic frequencies in this population?
A.Normal: 0.36; Intermediate: 0.62; No cardenolides: 0.02
B. Normal: 0.36; Intermediate: 0.48; No cardenolides: 0.16
C. Normal: 0.24; Intermediate: 0.48; No cardenolides: 0.04
D. Normal: 0.50; Intermediate: 0.48; No cardenolides: 0.02
E. Normal: 0.24; Intermediate: 0.72; No cardenolides: 0.04

Answers

Answer 1
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Related Questions


The currently accepted model of the cell membrane was discovered by ________ in the year ______

A) Charles Overton, 1895
B) singer and Nicolson, 1972
C) Davison and Danielli, 1970
D) Irving Langmuir, 1917

Answers

Answer:   B

Explanation:  The currently accepted model of the membrane is the fluid mosaic model.  S. J. Singer and G. Nicolson proposed the fluid mosaic model in 1972.

The cell membrane model depicts the arrangement of the biological membrane and its component. The fluid mosaic model was given by Singer and Nicolson in 1972. Thus, option B is correct.

What is the fluid mosaic model?

The fluid mosaic model was discovered by Singer and Nicolson and is a widely accepted model for the structural organization of the plasma membrane and its components. It elucidates the mosaic of plasma components.

The proteins, lipids, and carbohydrates are the main components of the plasma membrane that are arranged and shows the fluid nature of the biological membrane.

Its arrangement and structure allow the semi-permeable nature and its role as the barrier. It shows the membrane is a lipid bilayer that includes the hydrophobic tail and the hydrophilic head.

Therefore, the fluid mosaic model was given by Singer and Nicolson.

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The largest population of a particular species that an ecosystem can support
is the ecosystem's
O A. biome
O B. biodiversity
O C. carrying capacity
O D. keystone species
VOU
O Type here to search
D
SA

Answers

The largest population of a particular species that an ecosystem can support is the ecosystem's carrying capacity.

What is a carrying capacity?

Carrying capacity in ecology refers to the number of individuals of a particular species that an environment can support.

Every ecosystem has a maximum number of biotic components that it can support to ensure the sustainability of its resources.

Therefore, the largest population of a particular species that an ecosystem can support is the ecosystem's carrying capacity.

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Which of the following did Mendel conclude about patterns of inheritance?

A. An organism inherits one gene from each parent.
B. The two genes of a given trait separate, or segregate, during gamete production.
C. Similar forms of genes account for variation in the inherited traits.
D.Organisms inherit one gene for each trait.

Answers

Answer:

B

Explanation:

I took the test and got this one right (happy to help)

Answer:

B. The two genes of a given trait separate, or segregate, during gamete production.

Explanation:

B. The two genes of a given trait separate, or segregate, during gamete production.

RNA thường bắt đầu bằng base nào

Answers

Answer:

Xin lỗi vì bản dịch xấu.  Nó được tạo thành từ các căn cứ adenine, cytosine, guanine và uracil.

Explanation:

So với RNA, DNA có thymine thay vì uracil trong một phân tử di truyền polymer.

1. Discuss at least two attributes of a study that you would look for to determine whether or not it is rigorous.

Answers

Some of the aspects that help you determine whether a study is rigorous are questions and hypotheses that can be answered, adequated method use, and bibliography.

Rigorous is a term that refers to a quality that focuses on accuracy and precision to comply with norms, precepts, and pre-established rules. This term is widely used in science to refer to the precision of a study or investigation.

Therefore, when it is established that a study is rigorous, its attributes must be taken into account, such as:

- Questions and hypotheses that can be answered: This aspect refers to the investigator having the ability to limit his study so that it is appropriate to do so and does not include too much information that makes his study "impossible".

- Adequated methods use: This refers to using the appropriate methods to reach feasible conclusions, for example, methods of observation, deduction, induction, among others.

- Bibliography: This refers to the research or study being supported by reliable sources so that it is as accurate as the information it provides.

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draw an animal cell and label it's parts

Answers

Explanation:

Labeled Animal Cell!

. ;

Here is a labeled animal cell!!

Linda received the flu vaccine this year.

Which of the following statements is true?


Linda's T-cells will produce memory cells against the virus.


Linda's body will produce antigens against the flu virus.


Linda's immune system will produce lifelong immunity against any form of the flu.


Linda's immune system will produce antibodies against the flu virus.

Answers

Answer:

Linda's immune system will produce antibodies against the flu virus

Answer:

Linda's immune system will produce antibodies against the flu virus

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What type of factors would have the
greatest influence on a densely
populated area?
A. drought
B. density-dependent factors
C. density-independent factors

Answers

A)Density-dependent factors

Which statement applies only to the axial Skelton not the appendicular skeleton

Answers

Answer:

B

Explanation:

Una de las aplicaciones más importa del electromagnetismo son

Answers

Answer:

Las principales aplicaciones del electromagnetismo se emplean en: La electricidad. El magnetismo. La conductividad eléctrica y superconductividad.

Explanation:

Which of the following statements best describes one difference between transcription and translation?

Answers

The answer is the first one


what would happen if spleen and tonsils are removed from the body​

Answers

Answer:

In serious cases, your doctor might suggest that you have your spleen removed, which is called a splenectomy. It's entirely possible to live a normal, healthy life after having your spleen removed. Your risk of developing infections throughout your life may increase.

Imagine you found S. aureus to be resistant to Penicillin by Kirby Bauer analysis, but susceptible to Penicillin treatment in liquid culture (in other words, a MIC was determined). Which of the following are possible explanations for this inconsistency?

a. The concentration of Penicillin was higher in the Penicillin antibiotic disk than that used in liquid culture treatment.
b. The Penicillin disks used for Kirby Bauer analysis were expired/no longer active.
c. The concentration of bacteria was lower on the Mueller Hinton plate for Kirby Bauer analysis than that used in liquid culture treatment

Answers

The answer is definitely the concentration

Under normal conditions the sympathetic division is usually active in the body resting heart rates are influenced by nor epinephrine the parasympathetic system keeps heart rate lower than the heart would beat on its own. all of the above are true

Answers

Answer:

the parasympathetic system keeps heart rate lower than the heart would beat on its own.  

Explanation:

The parasympathetic nervous system (PNS) is one division of the autonomic nervous system. The vagus (parasympathetic) nerves that innervate the heart release acetylcholine in order to slow the heart rate by decreasing the slope of the pacemaker potential. Acetylcholine activates a type of G-coupled protein receptor known as muscarinic receptors, allowing for a parasympathetic reaction in the cardiovascular system (where these receptors are expressed), and thereby decreasing cardiac output by inhibiting heart rate. During rest, PNS predominates and controls the heart rate at a resting rate of 65-80 beats/minute (bpm), if parasympathetic nerves to the heart are cut, then the heart beats at its own rate of about 100 bpm.

Which diagram best explains changes to the composition of blood in the lungs?
Кеу
to,
fco
(A)
(B)
Alveolus
Blood
Alveolus
Blood
Capillary
Capillary
(C)
(D)
Alveolus
Blood
Alveolus
Blood
Capillary
Capillary​

Answers

Answer:

A

Explanation:

Just because

Please add the missing term:
Species -> Population -> Community
-> Ecosystem -> Biome ->
A. Ecology
B. Life Bubble
C. Hydrosphere
D. Biosphere
Copyright 2003 - 2021 Acellus Corporational

Answers

Answer:

Biosphere hope its a good one

Explain the rate of drainage of the soils.​

Answers

Answer:

water drain deep in the soil

Explanation:

when evaporation increase the temperature will also increase as well as the transportation will also increase

You will be evaluating the texture (size of soil particles) and the soil drainage rate (the amount of time it takes water to soak into the ground). understanding these characteristics will help you properly size your rain garden.

Question 12 of 25
How are photosynthesis and cellular respiration related?
A. The products of photosynthesis are the reactants of cellular
respiration.
O B. Cellular respiration is the process animals use to produce glucose,
while photosynthesis is the process plants use to produce
glucose.
C. Cellular respiration provides the energy for photosynthesis.
D. Photosynthesis produces water molecules, while cellular
respiration splits water molecules apart.
SUBMIT

Answers

Answer:

A) The products of photosynthesis are the reactants of cellular

respiration.

Explanation:

Photosynthesis converts carbon dioxide and water into oxygen and glucose, so that cellular respiration converts oxygen and glucose into water and carbon dioxide.

what gender of offspring are most often affected by sextinked inheritance?-What gender-are-usmally-carriers-of the trait?

-males, males
-males, females
-females, females
-females, males O O

Answers

Answer:

female, female

Explanation:

this is because sex-linked characters are normally borne in the X-chromosome

5x_=1 jdjdjcjdjdjjdkd​

Answers

Answer:

what...

Explanation:

The structure in the male reproductive system of rabbit which releases nutritious secretions for sperms
is called
O a.
Seminal vesicles
O b. Spermatogonia vesicles
Ос.
Cowper's vesicles

Answers

Answer:

I think the answer is A

Explanation:

A search of the definitions of each option

which of the specific classification is the specific organism found

Answers

Answer:

Species are as specific as you can get. It is the lowest and most strict level of classification of living things. The main criterion for an organism to be placed in a particular species is the ability to breed with other organisms of that same species.

For what purpose is the mineral corundum commonly used?
O A. To make pencils
O B. To make false teeth
O C. To make emery boards
O D. To make drinking glasses

Answers

Answer:

D I guess because grinding optical glass and for polishing metals and has also been made into sandpapers and grinding wheels.

Answer:

It's to make emery boards

Explanation:

I just took the test

2x - 5 = 7
slove for x

Answers

2x-5=7

2x=7+5

2x=12

x=12/2

x=6

_______

What is the frequency of a wave that has a wavelength of .20 m and a speed of 22 m/s

Answers

Answer:

110 Hz

Explanation:

Find the frequency of the wave using the formula, frequency = speed / wavelength.

Plug in the speed and wavelength, and solve:

frequency = speed / wavelength

frequency = 22 / 0.2

frequency = 110

So, the frequency of the wave is 110 Hz

How many newborn would you expect to have cystic fibrosis in a population of 10,000 people?

Answers

Answer:

6

Explanation:

10,000 people divided by 1700 is about 5.8

round 5.8 to a whole number at you will expect 6 people to have cystic fibrosis in a population of 10,000 people


reptilesimprovements over amphibians​

Answers

The person above me is correct

100 POINTS!!!!!!
The theories surrounding the formation of our solar system are based on many

biased opinions
incorrect facts
non-testable data
scientific investigations

Answers

scientific investigations is the correct thing

Answer:

"scientific investigations."

describe why heart failure is so often referred as "congestive" heart failure ?

Answers

Answer:

Heart failure — sometimes known as congestive heart failure — occurs when the heart muscle doesn't pump blood as well as it should. When this happens, blood often backs up and fluid can build up in the lungs, causing shortness of breath.

Explanation:

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PLEASE HELP ME!!!! I am stuck.
The frequency of tasters and nontasters of PTC varies among populations. (Answer ALL questions)
- In population A, 94 percent of people are tasters (an autosomal dominant trait)
and 6 percent are nontasters.
- In population B, tasters are 75 percent and nontasters 25 percent.
- In population C, tasters are 91 percent and nontasters are 9 percent.

1. Calculate the frequency of the dominant (T) allele for PTC tasting in population A.
2. Calculate the frequency of the recessive (t) allele for nontasting in population A.
3. Calculate the frequency of the dominant (T) allele for PTC tasting in population B.
4. Calculate the frequency of the recessive (t) allele for nontasting in population B.
5. Calculate the frequency of the dominant (T) allele for PTC tasting in population C.
6. Calculate the frequency of the recessive (t) allele for nontasting in population C.
7. Assuming that Hardy-Weinberg conditions apply, determine the TT frequency in population A.
8. Assuming that Hardy-Weinberg conditions apply, determine the Tt frequency in population A.
9. Assuming that Hardy-Weinberg conditions apply, determine the tt frequency in population A.
10. Assuming that Hardy-Weinberg conditions apply, determine the TT frequency in population B.
11. Assuming that Hardy-Weinberg conditions apply, determine the Tt frequency in population B.
12. Assuming that Hardy-Weinberg conditions apply, determine the tt frequency in population B.
13. Assuming that Hardy-Weinberg conditions apply, determine the TT frequency in population C.
14. Assuming that Hardy-Weinberg conditions apply, determine the Tt frequency in population C.
15. Assuming that Hardy-Weinberg conditions apply, determine the tt frequency in population C.

Answers

Answer:

vjfluflh

fk.ydj.td.jtd.sjtd

ktdfylluflyfulgñugñugñugñuguñgpi

Explanation:

hhm y chupapico

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