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MA_775_DIABLO [31]

3 years ago

11

The enzyme ___________ starts transcription by binding to the gene that is being transcribed and moves down the DNA strand, brin

ging in RNA nucleotides complementary to the gene sequence.

2 answers:

Bond [772]3 years ago

8 0

RNA polymerase or RNA for short.

Svetlanka [38]3 years ago

6 0

RNA polymerase starts transcription and uses one of the DNA strands as a template to make a new RNA molecule

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kaheart [24]

Answer:

a option energy is the group of connected and related organisms

Explanation:

i

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4 years ago

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

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2 years ago

The extracellular matrix can influence the shape of a cell because:

liq [111]

Answer:

a b c d e f e rt

Explanation:

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4 years ago

How might sickle cell disease have been related to Anna's death

inessss [21]

Sickle cell sickness might've been identified with her passing since her body and cells weren't getting enough oxygen. Indications more often than not don't happen until after the age of 4 months. All individuals with sickle cell iron deficiency have excruciating scenes called emergencies. These can last from hours to days,

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3 years ago

Which of these is an example of a mixture?

alexgriva [62]

Answer:

e

Explanation:

Salt water does not have a uniform composition and we can divide salt and water by simple physical process of evaporation (by boiling the salt water). Thus, salt water is a mixture, with salt as the solute and water as the solvent. In fact, salt water is a homogeneous mixture and can be termed as a solution

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3 years ago

Read 2 more answers