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Anit [1.1K]
3 years ago
5

The whole universe was once held in a zone called the...

Biology
1 answer:
e-lub [12.9K]3 years ago
6 0

Answer:

Matter

Explanation:

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Red-green colorblindness is an X-linked recessive trait. Neither John nor Ann is colorblind, but Ann’s father is colorblind. Wha
LiRa [457]

Answer:

To determine the fraction for the inheritance of Red green colorblindness the genotype of their parents must be considered although neither John nor Ann is color blind there is a very high probability that Ann will be a carrier if that is the case the fractions of the daughters of John and Ann that are expected to be carriers of that trait is 50% chance.

Explanation:

A punnet square can be used to determine any possible genotypic combinations in the parents. color  blindness is a recessive X-linked trait in which the patient is not able to distinguish, red or green or blue color. The normal gene and its recessive allele are carried by X chromosome in men, this color blindness appears in the presence of a single recessive gene Whereas in women color blindness occur only when both chromosome carry the gene this shows criss cross inheritance

8 0
3 years ago
Read 2 more answers
What is the main function of the nucleus and why
AlladinOne [14]

Answer:

it stores the cell's hereditary material, or DNA, and it coordinates the cell's activities, which include growth, intermediary metabolism, protein synthesis, and reproduction (cell division). Only the cells of advanced organisms, known as eukaryotes, have a nucleus.

Explanation:

nly the cells of advanced organisms, known as eukaryotes, have a nucleus.

4 0
3 years ago
Need a hypothesis for “How are proteins built from RNA”
Dima020 [189]

Hi!


Hypothesis:

<em>Proteins are built from the translation of messenger RNA (mRNA) molecules</em>


RNA, or ribonucleic acid, is a structure that is similar to DNA, except that it exists as a single strand, consists of a ribose sugar instead of a deoxyribose sugar and has the base uracil (U) instead of thyamine (T).


<h3><u>From DNA to RNA</u></h3>

RNA is generated through transcription of the DNA molecule, resulting in a <em>complementary </em>molecule of the template DNA strand. For instance, if the sequence of the DNA was:

ATGCGCAGTTATTGCGAT

The corresponding RNA sequence will be:

UACGCGUCAAUAACGCUA    <em>(complementary with U instead of T)</em>


<h3><u>From RNA to Protein</u></h3>

The RNA molecule in our case is known as the mRNA. After transcription the mRNA molecule is transported to the cytoplasm, where a ribosome binds to it for another molecule to translate the sequence. This translation is mediated by an RNA molecule known as the tRNA molecule which enters the ribosome to catalyze the reaction.

These molecules identify a sequence of 3 bases (codon) and for specific codon sequences, the tRNA allocates specific amino acid. For instance, for the codon <em>UCA</em>, the tRNA will allocate a <em>Serine residue.</em>

This translation process starts at specific three base sequences, known as start codons, and terminates at specific three base sequences known as stop codons.

In this manner, a sequence of amino acids respective to the mRNA codon sequence is synthesized, and as we identify proteins as chains of amino acids that are covalently linked together through peptide bonds, we can clearly see that proteins are built directly from RNA, and indirectly from DNA.


Hope this helps!


3 0
3 years ago
The gi organ that is the major site of nutrient absorption is the ________.
Novay_Z [31]
The answer to this would be a SMALL INTESTINE. The small intestine is the major site for the absorption of nutrients. Nutrients include different vitamins and minerals that are extracted from the foods that we eat. How absorption is possible in this site is the presence of e<span>pithelial cells of the villi. Hope this helps.</span>
5 0
3 years ago
Describe two desert animals and the adaptation that help them survive
WITCHER [35]

Answer:

Describe two desert animals and the adaptation that help them survive?

Camel and Donkey

Explanation:

Both animals have two different types of stomach that enables them to store water for a very long time and makes them withstand drought

7 0
3 years ago
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