For Labrador retrievers, black fur is dominant to yellow. a) Explain how two black dogs can have different genotypes. b) Could a black dog have the same genotype as a yellow dog

Answers

Answer 1

Answer:

Please find the answers explained below

Explanation:

A) This question involves a Gene coding for fur color in Labrador retrievers (a dog). The allele for black fur (B) is dominant over the alllele for yellow fur (b). Based on the law of dominance by Gregor Mendel, the dominant allele will always mask the phenotypic expression of the recessive allele in a heterozygous state. The two fur colors have different alleles, however, when they come together to form a heterozygote, the black fur is still expressed. Naturally, a black furred Labrador retriever should have the genotype; BB but since the black fur is a dominant trait, another heterozygous genotype will arise as Bb.

B) No, the black dog cannot have the same genotype as yellow dog. This is because the black dog must always have at least one dominant allele (B) in order to be black while the yellow dog, due to the recessiveness of the yellow allele can only have the genotype; bb. Hence, a black dog can either be Bb or BB but a yellow dog can only be bb.


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la rosa pertenece a un grupo de arbustos que puede ser homocigotico para expresar el tallo alto (TT) y se crusa con una homocigotica de tallo (tt) sabiendo que el tallo alto es dominante sobre el tallo enano ¿cómo serán los genéricos y fenotipos de la F1 yF2​

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Sorry I don’t understand.

NEEDED NOW ASAP HURRY PLEASE

Answers

Answer:

D

Explanation:

because the populations have become different, they can no longer breed making it harder from them to grow.

Once a standard curve has been prepared by plotting numbers of bacteria (CFU/mL) versus absorbance for one species of bacteria, this curve can be used for estimating bacterial numbers by measuring absorbance for any species of bacteria.

a. True
b. False

Answers

Answer:

b. False

Explanation:

The biomechanism of bacterial growth may be examined, by graphing cell growth (also known as absorbance) vs incubation time of the bacteria. A standard growth curve is the result of this process. The amount of turbidity in the broth culture is proportional to the number of microorganisms present.

A standard curve produced for a particular species can't be utilized to predict the number of bacterial counts for a different species due to the listed factors.

The rate of bacterial cell reproduction varies from a particular species to another.Varying species have different absorbance thresholds.


A fertilization
B prophase II
C polyploidy
D crossing over​

Answers

Answer:

Hi, there your answer D. Crossing Over

Explanation:


1. The diagram to the right represents events that occur during sexual
reproduction. The stages labeled A, B, and Care necessary to ensure that
the offspring will inherit
1. half of their chromosomes from each parent
2. double the amount of chromosomes from each parent
3. pairs of chromosomes from each parent
4. double the amount of chromosomes from one parent

Answers

half of their chromosomes from each parent

Explanation: you get half of your chromosomes from each of your parents

O aglomerado de moléculas orgânicas, revestido por uma película de moléculas de água e que, na opinião de alguns cientistas, pode ser um dos primeiros passos rumo à origem da vida, chama-se: *

(a) Aminoácido.

(b) Enzima.

(c) Micro-organismo.

(d) Coacervado.

(e) Proteína.​

Answers

Setup:


Answer: Ingles

Food chains end with a species that…

Answers

Your answer d is correct it makes the most sense and is the valid choice

what is the meaning of localisation ?​

Answers

The meaning of localisation is the process of making something local in character or restricting it to a particular place.

Localization is the adaptation of a particular product or service to one of those markets.

... XxMissFlirtyxX...

Define "CFU.” Why is this term used instead of simply using "cell count"?​

Answers

that are used to prevent the growth of specific microbes or it simply lacks be calibrated to a viable cell count to express microorganisms as CFU/ml, CFU stands for Colony Forming Units, a microbiology term used to quantify how unit-cfu-colony-forming-unit-cfu-ml-cfu-g-cell-count-microbial- counting.

describe nutrition in insect​

Answers

Answer:

Lots of insects eat plants, some insects eat other insects, and some even drink blood. Many insects eat nectar from plants. And some insects will eat whatever scraps of food you leave lying around. A few insects, such as mayflies and some moths, never eat.

Explanation:

What is one advantage of having many small cells instead of one large cell?
A. Small cells do not have cell membranes.
B. With many small cells, you have more surface area.
C. With many small cells, you produce less protein.
O D. Small cells do not require a stable internal environment.

Answers

having one large cell simply means that you can't move your limbs, so I say D

Which element is considered the most versatile element in living organisms and why?

Answers

Answer:

carbon

Explanation:

Because it can bond with many elements of form complex.

All living organisms contain carbon in their body, because carbon is essentially the element of life. It can form up to four covalent bonds, and therefore can make so many complicated molecules while still being stable at the same time.

How can you drop two eggs the fewest amount of times, without them breaking?

Answers

Answer:

yes yes i have seen this before,let me guess its from go.ogle

from calculating how thick and strong the shell is i prefer using a egg with a born baby inside becasue it takes energy from divideing cells thus making it lighter and less likly to break and they can stand a weight of 130 pound weight without breaking thus 6 inches to 8 inches will be the answer

i prefer ostrich eggs and make sure to get younger birds they have harder eggs

thus you can keep doing it and 3 out of 10 egg shall break this is real math so ya

Explanation:

please help ill give brainliest :)) A coach travels from the station to the beach, a distance of 430 km away in 7 hrs. The coach is only allowed to travel at a maximum speed of 95 km/h. Did the coach break the speed limit?

Answers

Answer:

No he did not break the speed limit

Explanation:

430÷7=61.43mph

Q6. In mice, the allele for black hair color is (B) dominant to that for brown (b), the allele for
short hair (H) is dominant to that for long hair (h). The gene for hair color and length are not
linked (i.e. they are on separate chromosomes).
One colony (colony A) of mice was pure breeding for short hair; a second colony (colony B) was
pure breeding for long brown hair.

a. A male from colony A was mated with a female in colony B.
i.
Give the genotype of the male from colony A and the genotype of female in
colony B. (2mks)
ii.
These two mice were crossed and produce a large number of offspring (F1).
Construct punnet squares to show this result (3mks)
iii.
Give the genotypes and phenotypes (ratio) of this F1 generation (2mks)
Genotypes:
Phenotypes:

Answers

Answer:

The correct answer is -

A (i) a male from colony A HH and female from colony B bbhh

(ii) the offspring will be heterozygous for short brown hair

(iii) genotype 100%  Hhb, phenotype - 100% short brown hair

Explanation:

It is given that parent one is from Colony A that is pure breeding for short hair which means p1 is HH and parent 2 is from colony B that is pure breeding for long brown hair that means p2 is bbhh.

Cross between HH and bbhh

Gemetes : H, H, and bh, bh,

Punnet:

       bh     bh

H    Hhb    Hhb

H    HhB    Hhb

Thus, the offspring will be heterozygous for short brown hair

Describe the function of Chloropasts

Answers

Answer:

Chloroplasts are found in plant cells, they make up the green pigment ( chlorophyll ) which manufactures food for the plant during photosynthesis process.

what is the role of the shrimp with respect to phytoplankton in this food chain

Answers

Explanation:

The answer is B. that is "Prey"...

The correct answer is option (b) Prey.

What is shrimp?

A small free-swimming crustacean with an elongated body, typically marine and frequently harvested for food.

What is phytoplankton?

Plankton consisting of microscopic plants is called phytoplankton.

Why other options are incorrect?

Option (a), (c), (d) is incorrect because, prey means the phytoplankton is the food of shrimp.

learn more about food chain below,

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Glycolysis takes place in _________________.

The cytoplasm
The mitochondrial intermembrane space
The mitochondrial matrix
The endoplasmic reticulum

Answers

Answer:

It occurs in the cytoplasm. Glycolysis also involves two stages which break up glucose. In the 1st stage, Glucose is broken into two phosphorylated 3-carbon compounds through a series of reactions.

1. This part of the electromagnetic spectrum passes though lead and has the highest energy of all emissions.

Answers

The answer is Gamma

Gamma rays have so much penetrating power that several inches of a dense material like lead

1. This part of the electromagnetic spectrum passes though lead and has the highest energy of all emissions.

A. Microwave

B. Radio

C. X-Ray

D. Gamma

Answer: D. Gamma Rays

Gamma rays have the highest energies and shortest wavelengths on the electromagnetic spectrum.

☆彡Hanna

#CarryOnLearning

The purpose of using the binomial scientific names is to

Give each organism a unique name
Give each species a unique name
Study how the environment affects different organisms
Study the evolution of life
Protect endangered species

Answers

Answer:

study the evolution of life

How is blood different after it is pumped through the capillaries in the intestines?

Answers

Answer: nutrients are absorbed then it goes into the bloodstream through capillaries. These nutrients include acids, vitamins and fatty acids

Explanation:

the answer is above

An organism has a haploid number of 20. What is the organism's diploid
number?

Answers

Answer:

It is 20!

Explanation:

I did this before

When species become challenging to classify, what is the most accurate technology for their identification?

DNA sequencing
DNA electrophoresis
DNA amplification
DNA barcoding
DNA replication

Answers

Answer:

Sería códigos de ADN

Explanation:

Espero ayudarte

Mitochondria and chloroplasts have a number of features in common. Which of the following is NOT one of them?

Answers

Answer:

give options.............

Select the correct answer. Oll-rich countries in the Middle East cover about 4% of Earth's total land area but possess about 48% of the world's known oil reserves. What is the main reason for the high concentration of reserves in this part of the world?​

Answers

Answer: The main reason for the high concentration of reserves in this part of the world which is the middle east that covers bout 4% of earth's total land area but possess about 48% of the world's known oil reserves is due to GEOLOGICAL PROCESSES. Hope this answer helps.

In a particular population, the allele frequency of the ABO blood type alleles are as follows: IA is 20%, IB is 30% and i is 50%. If mating is random and the population is in Hardy-Weinberg equilibrium, what percentage of the population will have type O blood type

Answers

Answer:

The genotypic frequency F(ii) = 0.25 = 25%

Explanation:

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

In the blood type cases involving the ABO group, the type of inheritance here is the co-dominance type of inheritance

The percentage of the population with type O blood will be 25%

Type A (IA) is dominant to type O (i) and at the same time type B (IB) is also dominant to type O (i).Using the equation - p² + 2pq + q² + 2pr + r² + 2qr = 1Where indicates the genotypic frequency with type A (AA) blood and indicates genotypic frequency of BB and indicates the genotypic frequency of OO.

Since we are finding the percentage with type O blood (r²) where r (allelic frequency of type O) is 0.5 (50%)

= 0.5² = 0.25 = 25%.

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the volume of a human brain is normally about 1200cm3. the osmolarity of solutes in the cerebrospinal fluid surrounding the brain is normally about 300mM. how does the volume of the brain change when the cerebrospinal fluid osmolarity drops to 280mM

Answers

Answer:

yesterday was a temporary password is goes by

Nuclear power plants produce large amounts of

Answers

Answer:

Nuclear reactors are, fundamentally, large kettles, which are used to heat water to produce enormous amounts of low-carbon electricity. They come in different sizes and shapes, and can be powered by a variety of different fuels.

Explanation:

Hope this helps!! :))

Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?
A. a caliper and a flask
B. a stopwatch and a beaker
C. a balance and a beaker
D. a meter stick and a temperature probe

Answers

Answer:  C. a balance and a beaker

Explanation:

A balance would be used to measure the weight, which in turn effectively measures the mass (more or less). Imagine that we have a brick that we know is 1 pound. If we have an object that needs 5 bricks on one side to balance it out, then we know the object is 5 pounds.

The beaker is used to measure the volume. It's basically a measuring cup that you would find in the kitchen.

To get the density, you divide the mass over volume.

For example, if you have a material that has a mass of 100 grams and it's volume is 20 cm^3, then its density is 100/20 = 5 grams per cm^3.

Answer:

C! Correct on Edge, and got 100% on this test!

Explanation:

Which of the following are characteristics of Ascomycota? Check all that apply.

flagellated spores

spores produced in the ascus

lack reproduction phase

important in the food industry

important in the digestion of animals

can cause disease in plants

can cause disease in animals

Answers

2. spores produced in the ascus

4. important in the food industry

6. can cause disease in plants

Explanation:

hope this helps :)

Ascomycota is the phylum of fungi which produce spores in the ascus, important in the food industry, and can cause disease in plants. Thus, the correct options are 2, 4, and 6

What are ascomycetes?

Ascomycota is a phylum of the kingdom fungi that, together with the Basidiomycota phylum of the fungi. The members of ascomycota are commonly known as the sac fungi or ascomycetes. Ascomycota is the largest phylum of Fungi, with over 64,000 species.

Ascomycetes are commonly known as sac-fungi as they are produced in a sac-like structure called as ascus. Inside this ascus, non-motile microscopic sexual spores are formed which is a defining feature of this kingdom fungi.

Therefore, the correct options are 2, 4, and 6.

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