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3 years ago

What are the DNA base pairs? Need asap

Biology

1 answer:

padilas [110]3 years ago

7 0

Answer:

I hope i helped

Explanation:

A base pair (bp) is a fundamental unit of double-stranded nucleic acids consisting of two nucleobases bound to each other by hydrogen bonds. They form the building blocks of the DNA double helix and contribute to the folded structure of both DNA and RNA. Dictated by specific hydrogen bonding patterns, "Watson–Crick" base pairs (guanine–cytosine and adenine–thymine) allow the DNA helix to maintain a regular helical structure that is subtly dependent on its nucleotide sequence. The complementary nature of this based-paired structure provides a redundant copy of the genetic information encoded within each strand of DNA. The regular structure and data redundancy provided by the DNA double helix make DNA well suited to the storage of genetic information, while base-pairing between DNA and incoming nucleotides provides the mechanism through which DNA polymerase replicates DNA and RNA polymerase transcribes DNA into RNA. Many DNA-binding proteins can recognize specific base-pairing patterns that identify particular regulatory regions of genes.

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Put these statements in correct order to understand how hearing works. - Ions enter hair cells - Stapes moves - auditory cortex

OLEGan [10]

Answer: From the question,the correct order of how hearing works is listed below:

--> sound wave is generated from hitting a key on a piano,

--> Incus moves,

--> Stapes moves,

--> Sound wave enters inner ear,

--> Fluid in the cochlea moves,

--> Fluid wave moves across Organ of corti based on frequency,

--> Ions enter hair cells,

--> hair cells bend,

--> auditory nerve transmits the signal to the auditory cortex,

--> auditory cortex recognizes the sounds.

Explanation:

In mammal, two ears are present on each side of the head. It is know as the organ for hearing and balance. The ear is divided into three regions:

--> OUTER EAR: This consists of pinna, ear canal, and eardrum( tympanic membrane)

--> MIDDLE EAR: This consists of the ear ossicles ( malleus, incus and stapes).

--> INNER EAR: This consists of Cochlea (organ of hearing) and semicircular canals (for balance).

To explain further on how we hear sounds, the vibrations of sounds produced from an external source move from the outer ear to the middle and then to the inner ear where the cochlea, the organ for hearing is located.

As sound wave is generated from hitting a key on a piano, the pinna collects the sound waves and directs them into the ear canal. Sound waves impinge on the tympanic membrane and makes it vibrate. This causes the malleus, incus and stapes (in this order) to move to-and -fro at the middle ear region.

In the inner ear region, sound wave enters inner ear as stapes pushes the oval window in-and-out. The vibrating oval window causes the fluid in the cochlea( perilymph) to move to-and -fro. Fluid wave moves across Organ of corti based on frequency. The pressure waves in the perilymph push the membrane separating the upper canal and the cochlear duct to-and-fro allowing ions to enter the hair cells. As a result, the hairs of the sensory cells between these two membranes bend causing nerve impulses to be sent to the brain through the cochlear part of the auditory nerve. Auditory nerve transmits the signal to the auditory cortex which recognizes the sounds.

8 0

3 years ago

The binding of Ach to its muscuranic receptors indirectly affects the permeability of _____ channels which can produce hyperpola

MArishka [77]

Answer:

The binding of ACh to the muscarinic receptor indirectly affects the permeability of K⁺channels. This can produce hyper polarization in some organs if channels are opened, and depolarization in others if channels are closed.

Explanation:

For example, in the heart it is the beta-gamma compound that fixes to the K+ channels of heart muscle and sources them to exposed. This leads to K+ dispersion out of the cell and the cell converts into hyper polarized consequential in a reduction in heart rate. In contrast, in smooth muscle of the stomach the alpha sub unit fixes to K+ channels producing them to close. This decreases the external diffusion of K+ and the cell converts depolarized ensuing in smooth muscle contraction.

3 0

4 years ago

How can contact with animals negatively impact humans? In what ways does contact or working with animals benefit humans?

crimeas [40]

Answer:

Humans are now responsible for causing changes in the environment that hurt animals and plant species. We take up more space on earth for our homes and cities. Human activity often changes or destroys the habitats that plants and animals need to survive.

Explanation:

7 0

3 years ago

The function of beta-galactosidase is to Blank Space __________.

Vikki [24]

<h2>Answer:</h2>

<u>A) Break down of lactose</u> and production of glucose.

<h2>Explanation:</h2>

Β-galactosidase is a glycoside hydrolases and breaks the lactose polysaccharide into two different monosaccharide called galactose and glucose. It is significant for life forms as it is a key supplier in the generation of vitality and a wellspring of carbons through the separate of lactose to galactose and glucose.

It is additionally significant for the lactose bigoted network as it is liable for making sans lactose milk and other dairy items.

The function of beta-galactosidase is shown in the image below.

8 0

3 years ago

Which was Charles Darwin’s contribution to the study of biology?

12345 [234]

Answer:

Darwin's greatest contribution to science is that he completed the Copernican Revolution by drawing out for biology the notion of nature as a system of matter in motion governed by natural laws. With Darwin's discovery of natural selection, the origin and adaptations of organisms were brought into the realm of science.

Explanation:

;)

6 0

3 years ago