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sergejj [24]
3 years ago
9

If an atom of sodium has 11 protons, what is its approximate atomic mass?

Biology
1 answer:
Damm [24]3 years ago
4 0
If you add the amount of protons with the amount of neutrons, you get the atomic mass. Sodium has 11 protons, and 12 neutrons. 11+12=23

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14). During the early 1700’s, a small group of pacifist Protestants fled Germany to avoid religious persecution. This group, the
abruzzese [7]
A) In the Dunker population, the frequency of IB allele is 0.3 and the frequency of i allele is 0.4. In the general population, the frequency of IB allele is 0.1 and t<span>he frequency of i allele is 0.5.
</span>
If:
I^{A} - <span>the frequency of IA allele
</span>I^{B} - <span>the frequency of IB allele
</span>i - t<span>he frequency of i allele

Then:
</span>I^{A} I^{A} + <span>I^{A} i - the frequency of individuals with A blood type
</span>I^{B} I^{B} + <span>I^{B} i - the frequency of individuals with B blood type
</span>ii <span>- the frequency of individuals with O blood type
</span>
Let's first take a look on the Dunker population:
I^{A} = 0.3
ii=0.16&#10;

<span>Since there is only one possible genotype for O individuals - ii - the frequency of the allele i is square root of the frequency of O individuals:
</span>i= \sqrt{ii}
⇒ i =  \sqrt{0.16}
⇒ i=0.4

Now, we have the frequencies of two alleles (I^{A} and i). To calculate the frequency of I^{B}<span> allele, we will use the formula:
</span>I^{A} + I^{B} + i = 1
⇒ I^{B} = 1- I^{A} - i
⇒ I^{B} = 1-0.3-0.4
⇒ I^{B} = 0.3

Now, in the general population:
I^{A} = 0.4
ii=0.25

<span>Similarly to the work for the Dunker population:
</span>i= \sqrt{ii}
⇒ i = \sqrt{0.25}
⇒ i=0.5

I^{A} + I^{B} + i = 1
⇒ I^{B} = 1- I^{A} - i
⇒ I^{B} = 1-0.4-0.5
<span>⇒ I^{B} = 0.1
</span>


b) A founder effect is a result of geographical separation of a few individuals from the original population. Those founding individuals will form a new population. The Dunker population was not only geographically separated, but also genetically. The group interbreeding was present resulting in increasing those allele frequencies that were the most common in the founding population. In this case, the most individuals from the founding population had B blood type.
6 0
3 years ago
Syntenic genes can assort independently when:_________.
Arturiano [62]

Answer:

4.

Explanation:

Synteny oe syntenic gene is defined as the physical co-localization of genetic loci on the same chromosome within a speciesand inidvidual.

In the beginning of the meiosis process, when genes are present in the same chromosomes but very far, they undergo indepedent assort due to homologous recombination and the random exchnage of matching fragment in  homologous chromosomes takes place. During the crossing over there are very less chances that all types of gametes are produced accurate frequency.

Hence, the correct answer is 4.

7 0
3 years ago
Snapdragons are popular garden plants that produce brightly colored flowers. When a plant that is homozygous for white flowers i
elena-s [515]

Explanation:

Incomplete dominance is an intermediate effect of the dominance where the allele for a trait does not express its complete effect of a paired allele as a result both the alleles show their equal effect on the trait.

The generations are produced having a third trait as observed in the case of snapdragon flowers. In the case of flowers  

The allele which  

1. Determines the red color will be- R

2. Determines the white color will be- r

The monohybrid cross will have parents with genotypes:  

1. Red flower- RR

2. white flower-rr

The F₁ generation will have offsprings with genotype-  

RR X rr = Rr (Pink flower)

The F₂ generation will have offsprings with-  

Rr x Rr= RR, Rr and rr.

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3 years ago
The simple building blocks that make up protein are known as
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Amino acids are the building blocks that make up proteins. 
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3 years ago
What is a fungi reproduced by need help asp!!!
PSYCHO15rus [73]
It’s is reproduced by fragmentation,budding or producing spores hope it helps!
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3 years ago
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