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Ivanshal [37]
3 years ago
14

Which of the following biological factors plays a role in the development of generalized anxiety disorder? a. elevated levels of

lactate b. deficient levels of the neurotransmitter GABA c. enlarged fluid-filled spaces in the brain d. elevated levels of the neurotransmitter dopamine
Biology
1 answer:
sertanlavr [38]3 years ago
5 0

Answer:

Option (B) and (C).

Explanation:

Anxiety disorders may be characterized as the mental health disorder that are characterized by the feelings of worry and panic. The symptoms of anxiety disorder are restlessness and stress.

Various biological factors are involved in the development of the anxiety disorder. The decreased levels of the GABA neurotransmitter is mainly responsible for this disorder. The enlarged fluid filled spaces called hydrocephalus are indirectly involved in the anxiety disorder.

Thus, the correct answer is option (B) and (C).

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A small island is home to a unique population of land snails. This population was founded by 10 individuals that floated to the
vekshin1

Answer:

  • The Island population likely has fewer alleles-that is versions of genes-than the mainland population.

       A- Agree <u>B- Disagree</u>

  • Genetic drift is more pronounced in the island population than in the mainland population in these first few generations

       A- Agree <u>B- Disagree</u>

  • Some harmful traits may have become more common in the island population than in the mainland population

       <u>A- Agree</u>- B- Disagree

  • Biologist observed genetic drift but not evolution

       <u>A- Agree</u> B- Disagree

Explanation:

If there was genetic drift, then allele frequency either increased or decreased by chance, irrespective of natural selection that is irrespective to weather those alleles helped individuals survive in the island environment. In molecular genetic data, there are statistical signature in the  population variation that indicate weather selection or other processes occurred.

7 0
3 years ago
The purpose of both mitosis and melosis is to create new cells. Both processes involve the replication of genetic material withi
Marta_Voda [28]

Answer: B or A

Explanation:

3 0
3 years ago
Which of the following sequences shows a frameshift mutation compared to the wild-type mRNA sequence?
Butoxors [25]

Option C:

B. wild-type 5-AUGCAUACAUUGGAGUGA-3 mutant 5'-AUGCAUACAUCUGGAGUGA- 3' 

Explanation:

A frameshift mutation is a genetic mutation such that the triplet nature of gene expression by codons, the insertion or deletion occurs in such as way that it alters the complete sequence of 3 codon sets and can change the reading frame, resulting in a completely different translation from the original.

As it is pertinent to understanding that all genes are normally translated in sets of 3 codons, which typically describes and explain a unique amino acid sequence. Thus, if a frame shift mutation occurs, it can affect many amino acid sequences and finally the entire protein.  

If we look at option B:

wild-type 5-AUG   CAU  ACA  UUG  GAG  UGA-3  

mutant 5’-    AUG   CAU  ACA  UCU  GGA  GUG  A-3’  

An insertion of a base Uracil showed at the end of 3rd codon which affected and altered the whole sequence of codon triplets. This changed all next codons and finally all next amino acids will be altered.

8 0
3 years ago
Cross a red flower (AaBB) with a pink flower (AaBb). What are the expected phenotypic ratios of offspring?
defon

Answer:

Cross a red flower (AaBB) with a pink flower (AaBb). What are the expected phenotypic ratios of offspring?

AaBB x AaBb= AABB, AaBb, AaBB, aaBb

Phenotyic ratio is 3:1

Explanation:

6 0
3 years ago
Can anyone help me please
Natalka [10]

Answer:

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Explanation:

7 0
3 years ago
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