Assuming no gene linkage, in a dihybrid cross of AABB x aabb with AaBb F1 heterozygotes, what is the ratio of the F1 gametes (AB, aB, Ab, ab) that will give rise to the F2 offspring?a.1:1:1:1b.1:3:3:1c.1:2:2:1d.4:3:2:1

Answer:

Cystic Fibrosis is a chronic, genetic condition that causes patients to produce thick and sticky mucus, inhibiting their respiratory, digestive, and reproductive systems. Like Thalassemia, the disease is commonly inherited at a 25 percent rate when both parents have the Cystic Fibrosis gene.

Answer:

Explanation:

True.

In bacterial communities, where resources are often limited, survival requires the ability to sense, respond to, and cooperate or compete with neighboring organisms is a true statement.

Bacterial communities differ in their species makeup, the niches they occupy, and the effects they have on various ecosystems.

Communities defy a single, fundamental definition due to their complexity. Instead, they offer fascinating illustrations of dynamic processes that vary with ecological size. In the beginning of microbiology, there were difficulties in describing and classifying communities.

Robert Koch revolutionized the study of microbiology in the late 1800s by inventing his techniques for proving the link between an infection and an organism (Koch, 1876). Koch's hypotheses continue to be the "gold standard" for linking germs to illness or any other interesting event.

Therefore, In bacterial communities, where resources are often limited, survival requires the ability to sense, respond to, and cooperate or compete with neighboring organisms is a true statement.

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Answer:

A. Carotene

Explanation:

It is an orange/red pigment which is seen during the fall.

Answer:

They are being divided by 2

Explanation:

If mitosis goes well, the zygote will continue to grow until it reaches the next phase of prenatal development. The period of the zygote is quite brief, lasting for about four days. Around the fifth day, the mass of cells becomes known as a blastocyst.

Answer:

Orogeny is the process of mountain building, and may be studied as a tectonic structural event, as a geographical event and a chronological event, in that orogenic events cause distinctive structural phenomena and related tectonic activity, affect certain regions of rocks and crust and happen within a time frame.

Explanation:

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Answer:

0.42

Explanation:

To estimate the frequency of alleles in a population, we can use the  

According to this equation:-

p =  

q =  

p + q = 1.0  

(p + q)  

2

 = 1 so p  

2

 + 2pq + q  

2

 = 1

p  

2

2pq = frequency of Aa  

q  

2

p+q = 1

0.3 + q = 1

q = 1 - 0.3 = 0.7

Aa = 2pq = 2* 0.3 * 0.7 = 0.42.

Answer:

1. An evolutionary trait that is homologous within groups of organisms (see homology) that are all descended from a common ancestor

2. Derived traits are those that just appeared (by mutation) in the most recent ancestor -- the one that gave rise to a newly formed branch.

3. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor.

4. It helps us to form a cognitive framework of understanding complexity.

5 Because it is a learned trait. For some domains, like Bacteria and Archeabacteria, DNA is transferrable

6. A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

7 Polyhedral, Helical, Complex, Spherical

8. Sometimes referred to as temperate or non-virulent infection, does not kill the host cell, instead using it as a refuge.

Explanation:

Hope that helps sorry I could not get all of it done, but I am busy doing my school work

Answer:

self-blame i think if i am wrong pls tell me

Answer:

a) parasite

Explanation:

hopefully this helps

Answer:

A

Explanation:

Parasite, Because a tik living on another animal would be a "vampire" organism otherwise known as a parasite.

Answer:

the red fox has 38 chromosomes,

Explanation:

Answer:

I am not sure what you are looking for but some food is limited due to the pandemic and I am having a hard time obtaining certain goods.

Explanation:

Answer:

1) Natural selection

2) Hypothesis: The excessive use of FQ antibiotics on chickens leads to the fixation of new genes -by natural selection- that result from mutations in the bacterial genetic material, which makes these cells become even more resistant to the drug.  

Explanation:

1) Natural selection selects beneficial alleles and increases their frequency in the population.

Natural selection results in adaptation, which means the increase of the aptitude phenotype. Aptitude is the contribution of each genotype to the next generation.

In many cases adaptations, resulting from natural selection can be correlated to environmental factors or selective pressures applied by other organisms or habitat.  

Let us remember that, a mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.

So, in the exposed chickens´ example, we are focussing on bacteria populations.

2) Hypothesis.  

First, remember that the hypothesis is a conjecture.   The researcher hypothesizes in order to predict what is going on or what is expected to occur. A hypothesis is a claim of how it works a relation between two or more variables. Usually, it is written in the present time.

So in this example, we want to correlate the use of antibiotics with bacteria resistance.

I would hypothezise as following,

The excessive use of FQ antibiotics on chickens leads to the fixation of new genes -by natural selection- that result from mutations in the bacterial genetic material, which makes these cells become even more resistant to the drug.

This hypothesis probably states the same as yours but turns to be more concise. The hypothesis needs to go to the point. If you want to be more specific, you can probably add some specific hypotheses to dig into your work.

We have that the,Natural selection caused the FQ antibiotic resistance.

Generally , Natural resolution causes a reaction that leads to antibiotic resistance, Mutation in micro organism make them resistant to antibiotics and when they reproduce similarly ,they will pass by this resistant trait to their offspring, which will outcomes into a completely resistant generation.

In the give up ,result is a populace of in most cases resistant bacteria.

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Answer:

Explanation:

Option D magma is the correct answer

Answer:

I would type it up, but I decided to insert a picture.

Explanation:

Answer:

community

Explanation:

Answer: Determining a substance's physical or chemical identity. What are the two main requirements for identification? The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.

Answer:

by performing a bioinformatic analysis in order to discover Y chromosome-linked mutations associated with defective phenotypes. In this case, it is expected to discover two or more loss of function mutations located in the coding region of the target gene on the Y chromosome in different males, and then associate such mutations with altered phenotypes caused by the inactivation (loss of function) of this gene

Explanation:

The genes located on the Y chromosome exhibit a uniparental mode of inheritance (i.e., these genes are only transmitted from father to their sons). This situation makes difficult to map the target gene since recombination does not occur for genes that are only located on the Y chromosome, hampering the development of a linkage map containing this gene. In this case, it is possible to directly associate genetic mutations located at the same genomic region (locus) on the Y chromosome with a particular altered phenotype in males carrying these mutations, which can be in principle associated with the inactivation of the target gene (loss of function mutations) in these individuals.

Answer:

diurnal means awake during the day, and use the light to their advantage

nocturnal active at night.

Explanation: Diurnal means active during the day, such as a mosquito meanwhile, a nocturnal animal or being is only active during the night, and sleeps the day away, such as a bat

Hope this helps ^^

Diurnal means awake during the day time, and use the light to their advantage. Nocturnal means active at night time. Thus, the correct options will be A and B.

Based on the activeness of an organism during a day or 24 hours time period, the animals or organisms can be classified into two different types which are nocturnal and diurnal organisms. Nocturnal animals are the animals which are most active during the night time, and diurnal animals are the animals which are active during the daytime.

Diurnal animals are those animals which are awake during the day time, and use the light energy to their advantage. Nocturnal animals are the animals which are active at the night time.

Therefore, the correct options will be A and B.

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Answer:

43.2%

Explanation:

When taking the sum and dividing it between 36 mo aka 3yrs, you get 222.222222. And the difference is 43.2%

Answer:

We can immediately cross-out C

We can also cross-out  A.

Now we have B and D.  Commensalism and Mutualism. Now, commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.

Mutualism is the doctrine that mutual dependence is necessary to social well-being.

I would say D: Commensalism​. Both fish can survive without each other.  

Answer:

The answer is B

Explanation:

Hope this helps

Answer:

B. dieting regulraly

Explanation: correct on edge 2021

just got it right ; )

Answer: blank 1: rotates

blank 2: gravity

Explanation:

Answer:

B.46, 12, 12

Explanation:

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Answer:

DNA → TAC CAT GGA ATT ACT

mRNA: AUG GUA CCU UAA UGA

Amino acids: met-val-pro-stop

Explanation:

Answer:

the new cells that arise after cell division are called daughter cells.

Answer:

No, I don’t. They both have significant pros and cons, and there’s not a lot of scientific evidence available to determine whether one solution is better than the other.

Explanation:

Edmentum

Answer:

Simple dominance is when the dominant gene in a heterozygous organism expresses the dominant phenotype. Incomplete dominance is when a heterozygous organism exhibits a blending of both genes, recessive and dominant. Red and white flowers will "blend" and make pink flowers.

Incomplete dominance, only one allele in the genotype is seen in the phenotype. In simple dominance, both alleles in the genotype are seen in the phenotype. In incomplete dominance, a mixture of the alleles in the genotype is seen in the phenotype.