The strand of dna used in the previous problem undergoes a mutation, such that the second c from the 3' end is changed to a

1 answer:

6 0

This mutation type is a substitution mutation. Substitution mutations may be silent or may have adverse effects (missense mutation).
Adverse effects come about because the change in codons in mRNA transcribed from the DNA strand. A point substitution can change the amino acid being coded for in the particular polypeptide change. If that animo acid is a structural residue of the protein, the structure of the protein will be altered, which may or may not lead to a change in protein function. If that particular amino acid is a catalytic residue of the protein, it may alter the 3D conformation and charge of the active site (if protein is an enzyme) or the binding site of protein. Function of protein formed from mutated DNA will be lost or altered.

Hope this helps! :)

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Which of the following is a true statement about lava that contains large amounts of dissolved gases? Lava that produces violent

anygoal [31]

Answer:

The dissolved gases produce violent eruption as they escape. 

Explanation:

Magma contains dissolved gases and these dissolved gases induce vapor pressure on the magma. The magma is able to remain in the dissolved state itself without erupting because this vapor pressure is less than the confining pressure of the rock surrounding the magma. 

One the vapor pressure exceeds this confining pressure the dissolved gases begin to expand and forms small gas bubbles.

The density of these gas bubbles called vesicles is less than the density of magma and thus naturally tries to push out. When the gas bubbles escape the magma is also pushed out. Thus greater amount of dissolved gases result in violent eruptions. 

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2 years ago

Explain the concept of growth using these terms: differentiate, meristem, elongation, and vascular cambium.

egoroff_w [7]

Answer: Well for one, Differentiate is when a cell matures and is used in a specific function. Meristem is a cell which never differeates and constantly divides so it is a mitotic cell. Elongation is the plant growing length wise therefore the meristem elongates the plant. Vascular cambium is the cambium which starts out in vascular bundles of the plant and then grows to form a ring inside the stem of plants that live for more than year- it causes and increase in thickness of the stem and branches.

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1 year ago

What is the proper position of the erector spinae muscles situated from medially to laterally relative to the axis of the verteb

Kazeer [188]

Answer:

These group of muscles called erector spinae muscles arises from a tendon in the sacral area and pelvis, it extends up to the occipital bone.

Erector spinae muscles originates from the SPINOUS PROCESSES of T9-T12 of the thoracic vertebrae and inserts into the SPINOUS PROCESSES of T1-T2 of the cervical vertebrae

They therefore run vertically on either side of the spine (medially and laterally).

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2 years ago

Calix’s karyotype showed that he has a genotype of XXY. Explain how nondisjunction caused Calix to be XXY.

Juli2301 [7.4K]

Answer:

A XY or XY gamete fuses with a normal gamete (X or Y)

Explanation:

Meiotic nondisjunction is the phenomenon whereby chromosomes fail to separate during meiosis I or II. Meiotic nondisjunction leads to the formation of abnormal gametes I.e. gametes with additional or missing chromosomal piece.

The fusion of these abnormal gametes produced by nondisijuction with a normal gamete (X or Y chromosome). This leads to a condition called ANEUPLOIDY, which is a chromosomal disorder. In the case od Calix, XXY is an ANEUPLOIDY state that could have resulted because there was a fusion between a XX gamete and Y gamete or XY and X. The XY or XX gametes are produced as a result of nondisijuction.

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2 years ago

In which marine environment would you find the greatest diversity of species?

Furkat [3]

You would the find the greatest diversity of species in a temperate kelp forest.
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2 years ago