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Pachacha [2.7K]
3 years ago
13

Fluid in the inner ear creates a sense of

Biology
1 answer:
Natasha2012 [34]3 years ago
8 0

Answer:

<em>It is also essential to our sense of balance: the organ of balance (the vestibular system) is found inside the inner ear. It is made up of three semicircular canals and two otolith organs, known as the utricle and the saccule. The semicircular canals and the otolith organs are filled with fluid.</em>

I hope this helps you.

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narvez 5. Everyone in Dobby's family has a long nose and they brag that they are from a purebred line. Viola has a stubby nose.
mote1985 [20]

Assuming a single diallelic gene coding for the trait and expressing complete dominance, the phenotypes, genotypes, and probabilities of getting each of them vary according to the parentals' genotypes. See the options below.

---------------------------------

Since I do not have the genotypes from #2, I will provide <em>different potential scenarios </em>for this question.

I advise you to <em>check on them</em> and see <em>which one matches the genotype from #2.</em>

Let us assume a single diallelic gene is coding for the trait and expresses complete dominance.

<h3 /><h3><u>SCENARIO 1</u>  ⇒ long nose is the dominant trait</h3>

Let us say that

  • L is the dominant allele and codes for long nose
  • l is the recessive allele and codes for stubby nose

Since long nose is dominant over stubby nose

  • LL and Ll ⇒ long nose
  • ll ⇒ stubby nose

If Dobby comes from a purebred family and has long nose, his genotype must be LL.

And if Viola has stubbi nose, her genotype must be ll.

<u>Cross 1</u>

Parentals)    LL   x    ll

Gametes)  L    L     l    l

Punnett square)    L       L

                      l      Ll      Ll

                      l      Ll      Ll

F1) Genotype ⇒ 100% heter0zyg0us Ll

     Phenotype ⇒ 100% long-nosed

  • <em>There is 100% chances for a child to have a long nose</em>
  • <em>There is 0% chances for a child to have a stubby nose</em>
  • <em>These children are not purebred</em>

                                             **********

<h3><u>SCENARIO 2</u>  ⇒ Stubby nose is the dominant trait</h3>

Let us say that

  • S is the dominant allele and codes for stubby nose
  • s is the recessive allele and codes for long nose

Since stubby nose is dominant over long nose

  • SS and Ss ⇒ stubby nose
  • ss ⇒ long nose

If Dobby comes from a purebred family and has long nose, his genotype must be ss.

And if Viola has stubbi nose, her genotype must be either SS or Ss.

There are two possible crosses.

<u>Cross 1</u> : Violet is h0m0zyg0us dominant SS

Parentals)    SS   x    ss

Gametes)  S    S     s    s

Punnett square)   S       S

                      s     Ss     Ss

                      s     Ss     Ss

F1) Genotype ⇒ 100% heter0zyg0us Ss

     Phenotype ⇒ 100% stubby-nosed

  • <em>There is 100% chances for a child to have a stubby nose</em>
  • <em>There is 0% chances for a child to have a long nose</em>
  • <em>These children are not purebred</em>

<u>Cross 2</u>: Violet is heter0zyg0us, Ss

Parentals)    Ss   x    ss

Gametes)  S    s     s    s

Punnett square)   S       s

                      s     Ss     ss

                      s     Ss     ss

F1) Genotype ⇒ 50% heter0zyg0us Ss and 50% h0m0zyg0us recessive ss

     Phenotype ⇒ 50% stubby-nosed and 50% long-nosed

  • <em>There is 50% chances for a child to have a stubby nose</em>
  • <em>There is 50% chances for a child to have a long nose</em>
  • <em>These children are not purebred</em>

----------------------------

You can learn more about single gene crosses at

brainly.com/question/12653314?referrer=searchResults

7 0
2 years ago
Why does DNA have to be made into mRNA? *
Lerok [7]

Answer:

Because mRNA tells you what type of veins

Explanation:

3 0
2 years ago
Read 2 more answers
Someone please give me an easy small invention idea that could fix pollution, it would mean the world. Thanks!
musickatia [10]
Making community gardens to reduce the excess CO2 in the atmosphere
8 0
3 years ago
if a dice is rolled and a coin is tossed at the same time find the probability of getting prime number on dice and head of the s
Goshia [24]

Answer:

probability of a prime no. coming up is 3 : 1

probability of a head coming up. is 2 : 1

this isn't biology btw..

8 0
3 years ago
What is the base of the hair follicles
Maslowich
The hair bulb forms the base which provides protein for the hairs.
4 0
3 years ago
Read 2 more answers
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