Drag each label to the correct location on the image.

The diagram represents the functional unit of a nervous system. Which structure secrets a neurotransmitter.

Georgia [21]

The cells of the CNS are called neurons. They secrete neurotransmitters.

8 0

3 years ago

Describe the interaction between an enzyme and it’s substrate

fiasKO [112]

Answer: The enzyme 's active site binds to the substrate. ... When an enzyme binds its substrate it forms an enzyme-substrate complex. Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur.

6 0

3 years ago

In laborador retrievers, pigment color is influenced by two genes. Gene A determines the type of pigment produced and gene B aff

Allisa [31]

Answer:

AaBb, AABb, AaBB, AABB, Aabb, aaBb, AAbb, aaBB, aabb.

Explanation:

Gene A conditions pigment type.

Gene B determines whether the pigment of A will be deposited.

Heterozygous black individuals will have the genotype AaBb.

Two heterozygous black individuals were crossed:

AaBb x AaBb

Progeny:

4 AaBb - Black

2 AABb - Black

2 AaBB - Black

1 AABB - Black

2 Aabb - yellow

2 aaBb - yellow

1 AAbb - brown

1 aaBB - brown

1 aabb - brown

<em>Hence, the genotypes of the offspring are:</em>

AaBb, AABb, AaBB, AABB, Aabb, aaBb, AAbb, aaBB, aabb.

See the attached image for the Punnet's square result of the cross.

7 0

3 years ago

Antisense oligonucleotides are relatively short stretches of nucleotides (usually about 20 nucleotides long) that are likely to

Montano1993 [528]

Answer:

The correct answer is: Gene Therapy.

Explanation:

Gene therapy can be defined as a broad biomedical and biotechnological technique by which diseases resulting due to the inheritance of mutated or inaccurate gene sequence from the parents or the generation of a sudden mutation in the genome of a person during the course of his life can be prevented.
RNAi or RNA interference technology is one of the many techniques used to correct various hereditary or gene related disorders.
In this technique, small oligonucleotides of RNA (Ribonucleic acid) of 22 to 24 nucleotides in length are used to bind to the complementary sequence present in the mRNA (messenger RNA) molecules.This results in the generation of double stranded RNA molecules which functions in two ways:

They are recognised by RISC or RNA-induced silencing complexes, having endonuclease activity. The RISC complex cleaves and degrades the target mRNA and hence prevents the formation of the target protein.
The double-stranded RNA molecules stalls the ribosomes and prevent their progression along the mRNA molecules, hence protein synthesis in inhibited.

This technique is useful in the following ways:

Cancer often results due to the unregulated activation of the oncogenes which are responsible for promoting uncontrolled growth and division in cells. The use of RNAi can prevent the expression of the onco-proteins which are majorly responsible for causing cancer.
Alzheimer's disease is often caused due to the accumulation of misfolded amyloid beta and tau proteins in the neurons. The RNAi technology can be used to prevent the formation of the improperly folded proteins.

6 0

3 years ago

Which of the following is the correct order for the steps of scientific inquiry?

guajiro [1.7K]

D. is my answer because you look and take notes first, then question it, then make a theory, then test, then gather all your data, and then come to a conclusion

6 0

3 years ago

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