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riadik2000 [5.3K]
3 years ago
8

How does dna polymerase add dntp monomers to the growing chain?

Biology
1 answer:
blsea [12.9K]3 years ago
6 0

Answer:

The 3′ carbon of the DNA chain forms a covalent linkage with the phosphate group on the 5′ end of the dNTP. ... The system detects mutations because they produce an irregularity in the DNA molecule.

Explanation:

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The allele for a blue skin color, B, is dominant to the allele b which codes for gray-colored skin. He decided to mate a lizard
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2 years ago
Two brothers have X‑linked red–green colorblind vision, and their parents have normal color vision. The first brother's karyotyp
zhenek [66]

Answer:

The answer is mother in meiosis II

Explanation:

nondisjunction can be defined as the failure of the segregation of the child chromosomes in meiosis I and meiosis II resulting in gametogenes. This results in abnormal gametes with some chromosomal imbalance being formed and subsequent fertilization of these gametes results in a generation of abnormal individuals.

According to exercise, red-green color blindness follows an X-linked recessive pattern and the phenotype is only expressed. the father cannot bring the possibility of color blindness to his children, and the nondisjunction, defined earlier, cannot occur in either meiosis I or meiosis II. As a conclusion we can say that it may have a place in meiosis I or meiosis II corresponding to the mother and although the mother's condition may be normal, the first child would be compromised with color blindness, therefore, the mother is the carrier.

3 0
4 years ago
What can be inferred from the phylogenetic tree shown? A) They are all equally related to one another. B) Eukaryota and Archaea
Rasek [7]

Answer:

A. They are all equally related to one another.

Explanation:

In scientific terms, the evolutionary history and relationships of organisms is called phylogeny. Phylogeny describes the relationship of one organism to others, such as which organisms it is thought to have evolved from, which species it is most closely related to, and so forth.

Phylogenetic relationships provide information on shared ancestry but not necessarily on how organisms are similar or different. Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms. Scientists consider phylogenetic trees to be a hypothesis of the evolutionary past since one cannot go back to confirm the proposed relationships. In other words, a “tree of life” can be constructed to illustrate when different organisms evolved and to show the relationships among different organisms.

6 0
4 years ago
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<span>if the oxygen poor blood mixes back with oxygen rich blood, that means that oxygen poor blood is not going back to the lungs to swap CO2 (carbon dioxide) with O2 (oxygen), and this swapping is vital to tissue survival, since oxygen is what keeps your tissues, muscles, and organs alive. so if this blood mixed, ultimately your organs are not receiving enough oxygen and will become starved of it, this can kill you and lots of people every year get heart surgery because their atrium or ventricles in their heart rupture (normally the valves</span>
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4 years ago
Identify 5 adaptations (anatomical and/or behavioral) these organisms have
soldier1979 [14.2K]

Answer:

Explanation:

Fish- Gills, allows to breathe under water

Shark- Small receptors on their heads allow for magnetic field sensing

Beavers- Slaps their tails when a animalgets close to their dam

Shrike Bird- Catches bugs and sticks them on thorns to impress potential mates

Birds Beaks- Birds have adapted to eat many different foods, their beaks show what kind of food they eat

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4 years ago
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