Punnett squares provide an easy way to predict the possible genotypes for an offspring, but it is not practical to perform a Punnett square analysis on all possible combinations of all members of a population to predict what the population might look like in the future.

a. True
b. False

Answers

Answer 1

Answer:

True

Explanation:

There are certain limitations associated with the Punnett Squares. They are not useful in case of complex genetic inheritance such as linkage between two genes. In case of linkages it becomes difficult to estimate the distribution of genotypes and phenotypes. For example in case of  Nail-patella Syndrome and gene associated with blood group two genes lie on the same chromosome in close vicinity and hence there are high chances of inheritance of these traits in the offspring from the parent thereby causing  random distribution of the two traits. This random distribution cannot be captured through punnet square.  

The same problem is associated in case where a single gene is determined by multiple genes with graded effects of each gene.  


Related Questions

Your job is to write out a story about the Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “Grown Up” and moved away from home. Each now lives in a new place and has their own job and they have come home for the annual family reunion. Your job is to write a story that details their conversation as they all get together and discuss where they “live” and what they now “do.” It is your decision as to the format that you would like to use. For example, you could write a story in paragraph or script formats that identifies the job and location of each tissue. To help with this process, you will want to give each one of your tissues a name.

The tissues you have to include are epithelium, connective, nervous, and muscle tissues. Please answer before Febuary 12, 2021. It has to be a paragraph and give them names. Since this requires a lot of thinking and creativity it is worth 80 points.

Answers

Answer: Write out a story about the Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home. Each now lives in a new place and has their own job and they have come home for the anual family reunion.Your job is write story that details their conversation as they all get together and discuss where they ” live” and what the now “do”. It is your decision as to the format that you would like to use. For edxample you could write story in paragraph that identifies the job and location of each

Explanation:

The Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home.

What are Meristem cells?

Meristem cells are totipotent meaning they can differentiate to any type of plant cells. Therefore they can produce a variety of plant type depending on epigenetic. However, tissue culture is derived from already differentiated cells. These cells are already determined and can only produce cell type of that plant from which they were derived.

Gene therapy is a method of using genetic material to treat or prevent certain diseases. A common method researchers have found to accomplish this is with vectors. Vectors are essentially vehicles designed to deliver therapeutic genetic material, such as functional genes, directly to cells. A vector-valued function, also called a vector function, is a mathematical function of one or more variables whose extent is a multidimensional vector or a set of infinite-dimensional vectors.  

Therefore, The Tissue Family Reunion which includes the following family members: epithelial, connective, nervous, muscular. All of the tissues have “grown up” and moved away from home.

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How was Hawaii formed, and how does this provide evidence for convection happening?
HELP PLEASE

Answers

By many volcanic eruptions eventually forming an island.

Question 10
6.7 pts
Which of the following most likely happens in the cells of a person running a
marathon?
The respiration rate increases to produce more ATP.
The cell division rate increases to produce more muscle fibers
The photosynthesis rate increases to produce more sugars
The replication rate increases to produce more DNA

Answers

Answer:

The respiration rate increases to produce more ATP.

Explanation:

Running requires energy so the cells need to make more ATP through cellular respiration.

People try to conserve some resources, like fossil fuels, because they are
not replaceable. Why can't these resources be replaced?
A. They must be transported long distances
B. Processes to make them take longer than a human's lifetime
C.No one can afford to buy more of them
D. It is impossible to extract more from the Earth

Answers

Answer:

B. processes to make them take longer than a human's lifetime

Albinism is a somatic recessive condition resulting from the inability to produce the dark pigment melanin in skin and hair. A man and woman with normal skin pigmentation have two children. The man has one albino parent; the woman has parents with normal pigmentation, but an albino brother. a. What is the probability that at least one of the children is albino

Answers

Answer:

There is 1/6 of the probability that at least one of the children is albino.

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files.

If you were to start at the base of a mountain and climb it all the way to the top, how would the climate change?

A The climate would get colder and drier as you go up the mountain.
B The climate would get warmer and wetter as you go up the mountain.
C The climate would stay the same because you are in the same climate zone.
D The climate would be similar to a tropical climate zone as you go up the mountain.

Answers

Answer:
C
Explanation:
It’s easy

The climate would get colder and drier as we go up the mountain. So, the correct option is A.

What is the effect of altitude on the atmosphere?

When altitude increases, the amount of gas molecules in the air decreases, so the air becomes less dense than air closer to sea level, which is what meteorologists and climbers mean by "thin air". Thinner air exerts less pressure than air at lower altitudes.

Most of the gas molecules in the atmosphere are pulled closer to the Earth's surface by gravity, so gas particles are denser near the surface, so with more gas particles in a given volume, there are more collisions of particles and therefore more pressure.

Thus, the climate would get colder and drier as we go up the mountain. So, the correct option is A.

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What is the layer under the Lithosphere called?

Answers

Below the lithosphere is the asthenosphere.

Which of the following describes the different classifications of consumers in an ecosystems.


A. Herbivores eat producers. Carnivores eat other consumers. Omnivores eat producers and other consumers.


B. Herbivores are always plants. Carnivores are always animals. Omnivores are always humans.


C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.



D. Herbivores only live in aquatic ecosystems. Carnivores and omnivores only live in terrestrial ecosystems.


Please Answer fast!

Answers

Answer:

Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.

Explanation:

we got three types of consumers :

primary consumers secondary consumers tertiary consumers

The correct answer is C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.

There are 4 types of consumers :

1. Omnivores are also primary consumers.

2. Carnivores are primary consumers.

3. Herbivores are tertiary consumers.

4. Decomposers are known to be fungi, bacteria, invertebrates.

What are ecosystems?

An ecosystem is an area where all living organisms including plants, animals, Homosapiens, microorganisms. It also has abiotic and biotic factors.

Hence concluded that C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers, which describes the different classifications of consumers in ecosystems.

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Which of the following rows in the table best compares the function of a plant's xylem and phloem? I Need help ASAP!

Row 1

Xylem

- transports glucose absorbed by the roots to the rest of the plant


- alive at maturity

Phloem

- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant


- dead at maturity


Row 2

Xylem

- transports glucose produced by photosynthesis in the leaves to the rest of the plant


- dead at maturity

Phloem

- transports water and nutrients absorbed by the roots to the rest of the plant


- alive at maturity


Row 3

Xylem

- transports water and nutrients absorbed by the roots to the rest of the plant


- dead at maturity

Phloem

- transports glucose made during photosynthesis in the leaves to the rest of the plant


- alive at maturity


Row 4

Xylem

- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant


- alive at maturity

Phloem

- transports glucose absorbed by the roots to the rest of the plant


- dead at maturity

Answers

Answer:

row 3

Explanation:

xylem transport water and nutrient absorbed by the root to other part of the plant

Answer:

Row 3

Explanation:

I took the exam

which of the following is NOT a nucleic acid ?

a. DNA

b. mRNA

c. tRNA

d. Protein

Answers

Answer:

reverse transcriptase

Explanation:

The following is NOT a nucleic acid is - d. protein as it is a different macronutrient or macromolecule to nucleic acid.

Nucleic acids are macromolecules of a special class found in all living organisms and also in viruses. There are two types of major nucleic acids, DNA or deoxyribose nucleic acid and RNA or ribose nucleic acid.

Nucleic acids play a role in genetic materialnucleic acid helps in protein synthesisRNA is mainly three types mRNA, messenger RNA, tRNA transfer RNA, and rRNA ribosomal RNA.DNA is normally double-stranded

Protein on other hand is a different class of macromolecules that perform many roles in the cell such as, structure, function, and regulation.

Thus, the correct answer is - D. protein.

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What is one reason why rock layers are not horizontal?

They were formed at an angle.

They were formed veritcally.

The area was once covered by water.

A force pushed the rock layers after they were formed.

Answers

Answer:

the last one, as they would be pushed together either going up or down when tectonic plates shift.

Explanation:

Answer: A force pushed the rock layers after they were formed.

Explanation:

A student prepares a cell homogenate from spinach leaves. She performs a cell fractionation experiment to determine the shortest amount time of centrifugation at 2000xg that will yield the highest percentage of chloroplasts in the pellet fraction. She splits the spinach homogenate into 5 equal parts and centrifuges the parts at 2000xg for 0, 5, 10, 15 or 20 min. She then determines the proportion of chloroplasts in the supernatant and pellet fractions. The controlled variable(s) in the student's experiment is/are:_____.
a. proportion of chloroplasts in each fraction.
b. use of same plant homogenate throughout.
c. time of centrifugation in minutes.
d. g-force of centrifugation.

Answers

Answer:

b. use of same plant homogenate throughout.

Explanation:

In an experiment, the controlled variable, also called the CONSTANT is the variable that is kept the same throughout the course of the experiment in order not to influence the result or outcome of the experiment.

In this question, a student performs a cell fractionation experiment to determine the shortest amount time of centrifugation (manipulated variable) at 2000xg that will yield the highest percentage of chloroplasts (responding variable) in the pellet fraction. In this experiment, the variable being controlled is same spinach plant homogenate used throughout.

Which group of organisms can be considered a population

Answers

Answer: Is a group of organisms of the same species that interbreed for example a group of robins in North America

Answer: population is defined as a group of organisms of the same species that live in a particular area. There can be more than one population living within any given area. There can be a population of Saguaro Cacti, a population of Cactus Wrens and a population of Bark Scorpion living in the same areas.

Hope this helps (:

A guinea pig with black eyes (B b) is crossed with one that also has black eyes (B b).

Answers

Answer:

then we get same type of animal whom have also black eyes (Bb)..

Which of the following is an example of terrestrial plant

a.talahib
b.sea lettuce
c.duckweeds
d.algae​

Answers

Answer:

algale is the right response

The answer is B. Sea lettuce

Which of the following is the thickest layer of the Earth?

inner core

outer core

mantle

crust

Answers

the thickest layer is the inner core.

How many groups of protists are there

Answers

Answer:

3 groups.

Explanation:

Each of these three groups have multicellular species and the green and red algae have many single-celled species. The land plants are not considered protists.

Answer:

3 groups

Explanation:

What’s the answer to this pls

Answers

I’m pretty sure the answer is D

why are plastids called kitchen of the cell​

Answers

Answer:

Plastids are known as kitchen of a cell because some kinds of plastids (chloroplasts) play a vital role in the process of photosynthesis in which plants make their own food by sunlight,water and nutrients.

Explanation:

I hope this helps!

Answer:Plastids are known as kitchen of a cell because some kinds of plastids (chloroplasts) play a vital role in the process of photosynthesis in which plants make their own food by sunlight,water and nutrients, which makes it more better for animals to eat. And the plant provides healthy nutrients for them.

Through the process of transformation, bacteria cells can take up plasmids that contain recombinant DNA

TRUE or FALSE

Answers

Answer:

true

Explanation:

What will most likely happen if all the chloroplasts are removed from a plant cell?

Answers

In the process of photosynthesis sunlight is absorbed by the chloroplasts to make sugar. Therefore, if chloroplast is taken out of the cell, the green plant will not be able to carry out the process of photosynthesis which means the plant will die.

which RNA molecule carries amino acids

Answers

Answer:

Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein 

What three parts make up the modern cell theory

Answers

1. DNA
2.cells of all organisms
3.energy

Why do scientists think that all modern plants,
animals, and fungi can be traced to protist
ancestors?

Answers

Answer: Scientists think that all modern plants, animals, and fungi can be trace to protist ancestors because the protists is the root of all eukaryotic diversity. yw.

Scientists think that all modern plants, animals, and fungi can be trace to protist ancestors because the protists is the root of all eukaryotic diversity. ... The function that do cilia and flagella in protists carry out is movement. The first multicellular animals presumably evolved from colonial protists (most likely choanoflagellates), and within the colonies, cells progressively differentiated from one another, acquiring specific functional characteristics. It may sound like a bit of a stretch, but in fact such a phenomenon can be observed in colonies of extant unicellular organisms, both prokaryotes and eukaryotes, where some cells of the colony can become differentiated under particular environmental conditions. We can speculate that early in the history of animals some differentiation genetic programs evolved, got stabilized, and became inheritable from one generation to the next. Once different populations of cells were established in the colony, the door was opened to further specialization. Specialized cells were not initially grouped in organs but were more like regionalized populations or layers of cells, as we see in sponges, and morphogenesis progressively evolved

please help i’ll mark u as the brain thing !!


2. Lines 25–33: What examples of sentence structure and wording help create the style of this essay? Are the sentences long and filled with details, or are they short and crisp? Is the grammar formal or informal? Give an example.

Answers

Answer:

There are many important pieces that together make up a writer's style; like tone, word choice, grammar, language, descriptive technique, and so on. Style is also what determines the mood of a piece of literature, so its importance is huge across all genres.

Explanation:

Does this help at all??

Are viruses composed of cells?

Answers

Answer:

No

Explanation:

Viruses are not made out of cells. A single virus particle is known as a virion, and is made up of a set of genes bundled within a protective protein shell called a capsid. Certain virus strains will have an extra membrane (lipid bilayer) surrounding it called an envelope.

Answer:

Viruses are not composed of cells

Select the correct answer.
Why will a decrease in pH of the stomach affect protein digestion?
OA. Decrease in pH of the stomach will distort the structure of peptides in food, which affects the action of the enzyme pepsin.
O B. Decrease in pH of the stomach will distort the active site of the enzyme pepsin, which affects its
action.
O C. Decrease in DH of the stomach will distort the active site of the enzyme lipase, which affects protein digestion. Yes

Answers

Answer:

cats

Explanation:

n

The ability to taste the chemical PTC is determined by a single gene in humans with the ability to taste given by the dominant allele T and the inability to taste by the recessive allele t. Suppose two heterozygous tasters (Tt) have a large family. What is the likelihood that their first child will be a taster

Answers

Answer:

75%

Explanation:

This question involves a single gene coding for the ability to taste the chemical PTC. The allele coding for the ability to taste (T) is dominant over the allele coding for the inability to taste (t). This means that an heterozygous individual will have the ability to taste PTC.

According to this question, if two heterozygous tasters (Tt) cross to have a large family i.e. Tt × Tt, the following gametes will be produced by each parent;

Tt = T and t

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

TT, Tt, Tt - Tasters (3/4 or 75%)

tt - Non-taster (1/4 or 25%)

Note that based on the question asked, there is a 75% probability that their first child will be a taster because there is equal segregation of alleles into gametes.

1. What effect does air pressure have on wind movement?

2. What happens to the density of air as it is heated?

3. It’s a hot, sunny morning in a coastal town in South Florida. Warm air is rising up from the land. Large, puffy clouds are forming overhead. Which way do you think the wind will be moving this afternoon, and what do you think will happen to the temperature?

Answers

Answer:

1. The lower the air pressure the faster the wind the higher the air pressure the slower the winds

2. When the heat of the air increases the density of the air decreases.

3. The air above the ocean will, therefore, be warmer and of low pressure than that over land which will be cooler and of relatively higher pressure. Winds will, therefore, blow seawards because winds blow from high to low-pressure systems.

Explanation:

A pure-breeding, tall pea plant with white flowers is crossed with a pure-breeding, short plant with red flowers. The F1 plants are tall, with red flowers. When allowed to fertilize themselves, these produce the following F2: 326 tall, red; 104 tall, white; 117 short, red; and 29 short, white. You are conducting a Chi-Square analysis and what is the null hypothesis?

Answers

Answer:

Null Hypothesis -

The observed frequency is approximately equal to the expected frequency of phenotype.

Explanation:

Pure Breeding Cross - TTww x ttWW

Genotype of offspring in F2 generation - TtWw

Null Hypothesis -

The observed frequency is approximately equal to the expected frequency of phenotype.

The chi square analysis is attached

The degree of freedom for this question is 3

The p value for X^2 estimated through chi square test is 0.5

Hence the null hypothesis is accepted.

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