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Paladinen [302]
3 years ago
6

The atrioventricular valve is:

Biology
2 answers:
attashe74 [19]3 years ago
8 0
A is the answerrrrrrrrrrrr
Mademuasel [1]3 years ago
6 0
A) A flap in the heart located between each atrium and ventricle.
Hope it helps! :)
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Match the following enzymes involved in DNA replication with their functions.
spin [16.1K]

Answer:

DNA ligase is an enzyme which can connect two strands of DNA together by forming a bond between the phosphate group of one strand and the deoxyribose group on another.

DNA polymerase is an enzyme that synthesizes DNA molecules from deoxyribonucleotides, which are the building blocks of DNA. The enzymes play an essential role in DNA replication, usually working in pairs to produce two matching DNA stranges from a single DNA molecule.

DNA gyrase is an essential bacterial enzyme that catalyzes the ATP-dependent negative super-coiling of double-stranded closed-circular DNA

Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.

Explanation:

6 0
3 years ago
How would the absence of gravity affect the formation of planets
Cerrena [4.2K]

Answer:

The rocks and debris would never accrete into a planet.

Explanation:

Gravity is an attraction force and dependents on the mass of the objects but in the absence of the force, the rocks and debris would not come together to form a clump. So, we can say that in the absence of gravity, the rock and debris would never accrete into a planet. So,  we can say that in the absence of gravity, the rock and debris would never accrete into a planet.

7 0
3 years ago
Read 2 more answers
Explain the importance of scientific names.
prohojiy [21]

Answer:

Every recognized species on earth (at least in theory) is given a two-part scientific name. This system is called "binomial nomenclature." These names are important because they allow people throughout the world to communicate unambiguously about animal species.

3 0
3 years ago
Name two ways that water can enter the atmosphere.​
vampirchik [111]

Answer:ways Water enters the atmosphere evaporation, transpiration, excretion and sublimation:

Explanation:

Transpiration is the loss of water from plants (via their leaves).

Sublimation is when ice or snow transforms directly into water vapour without going through a liquid phase (i.e. they do not melt).

Animals excrete water by respiration and by passing urine.

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.

7 0
3 years ago
A translocation that moves a gene from an area of euchromatin to heterochromatin would typically cause a(n) ________ in the expr
Advocard [28]

A translocation that moves a gene from an area of euchromatin to heterochromatin would typically cause a(n) reduction in the expression of the gene.

<h3>What is euchromatin?</h3>
  • A kind of chromatin that is sparsely packed, enriched in genes, and frequently engaged in transcription is called euchromatin.
  • Contrasting with heterochromatin, which is compact and less accessible for transcription, is euchromatin.
  • The human genome has 92% euchromatic DNA.
<h3>What is heterochromatin?</h3>
  • Heterochromatin, often known as condensed DNA or densely packed DNA, has many different types.
  • Between constitutive heterochromatin and facultative heterochromatin, these variations fall on a spectrum. Both contribute to how genes are expressed.
  • Eukaryotic genomes contain heterochromatin, which serves a variety of purposes including regulating gene expression and preventing DNA replication and repair.

Learn more about euchromatin here:

brainly.com/question/12318627

#SPJ4

3 0
1 year ago
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