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1 year ago

In bacteria, translation of the mrna begins near the 5' end of the mrna molecule, when a(n).

1 answer:

7 0

When an mRNA attaches to the small ribosomal subunit in bacteria, translation of the mRNA starts close to the 5' end of the mRNA molecule.

As soon as mRNA is transcribed in bacteria, it is translated into protein. In contrast to eukaryotic cells, bacteria lack a distinct nucleus that divides DNA from ribosomes, removing a barrier to translation. Transcription and translation take place concurrently in these species. mRNA translation initiation in bacteria begins as soon as the messenger RNA (mRNA) molecule's 5' end has been created. Transcription and translation are interdependent processes that take place in these prokaryotic species. A short ribosomal-binding region that is located near the mRNA's 5' end helps bacterial mRNA bind to the small ribosomal subunit at the beginning stages of translation.

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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.

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

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

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

<h3 /><h3>SCENARIO 1 ⇒ 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.

Cross 1

Parentals) LL x ll

Gametes) L L l l

Punnett square) L L

l Ll Ll

F1) Genotype ⇒ 100% heter0zyg0us Ll

Phenotype ⇒ 100% long-nosed

There is 100% chances for a child to have a long nose

There is 0% chances for a child to have a stubby nose

These children are not purebred

**********

<h3>SCENARIO 2 ⇒ 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.

Cross 1 : Violet is h0m0zyg0us dominant SS

Parentals) SS x ss

Gametes) S S s s

Punnett square) S S

s Ss Ss

F1) Genotype ⇒ 100% heter0zyg0us Ss

Phenotype ⇒ 100% stubby-nosed

There is 100% chances for a child to have a stubby nose

There is 0% chances for a child to have a long nose

These children are not purebred

Cross 2: Violet is heter0zyg0us, Ss

Parentals) Ss x ss

Gametes) S s s s

Punnett square) S s

s Ss ss

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

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

There is 50% chances for a child to have a stubby nose

There is 50% chances for a child to have a long nose

These children are not purebred

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

You can learn more about single gene crosses at

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7 0

2 years ago

There are economic concerns surrounding the products that have been genetically engineered for particular traits, including

Arturiano [62]

Answer:

patented products

Explanation:

A patented product is one that has gone through a public concession process that has ruled that a particular company or manufacturer has exclusivity in the manufacture and distribution of that product on the market.

There is a concern about the existence of patented products in relation to genetically modified organisms, because this may prohibit the manufacture of similar products. In the case of agricultural crops, this concern becomes even greater, because the controversy of genetically modified and authenticated crops may end up being invaded and contaminating the plantation that has not been genetically modified, causing the producer to lose production rights for the contaminated crop.

8 0

3 years ago

PLEASE HELP I WILL GIVE YOU 20 POINTS IF YOU HELP ME AND I WILL NAME YOU THE brainiest

Neporo4naja [7]

Answer: protists are eukaryotes, while bacteria are prokaryotes.

Bacteria are single-celled microbes, which means they are prokaryotes because they lack organelles.

Protists are single-celled eukaryotic organisms that aren't plants, fungi, and animals.

6 0

3 years ago

Are ductless or tubeless organs or groups of cells that secrete hormones directly into the bloodstream

vovangra [49]

Endocrine glands are ductless or tubeless organs or groups of cells that secrete hormones directly into the bloodstream. The endocrine glands are part of the endocrine system and include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands. The endocrine system maintains homeostasis, controls the growth and development, controls metabolism (body energy levels), reproduction, response to stimuli (stress and/or injury).

6 0

3 years ago

A red flower and a white flower produce link offspring. What condition explains this phenomenon?

Anika [276]

The condition which explains this phenomenon is called incomplete dominance. Two different organisms (flowers) with two different phenotypes (red and white) will produce an offspring with a third phenotype. In this case, the third phenotype is the pink color. It is a blending of the parent traits.

7 0

3 years ago