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inna [77]
3 years ago
10

Which of the following is true about glassy igneous rocks?

Biology
1 answer:
Evgesh-ka [11]3 years ago
6 0
Glassy igneous rocks (i.e. obsidian) are cooled very rapidly.
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What can create biases in people, sometimes that we are unaware of?
ratelena [41]

Answer:

Views, opinions and ideas

Explanation:

Biases are created through that individual's specific Views, opinions, and ideas. As we grow up we develop unique views, opinions, and ideas based on the experiences we go through over the years that generate a strong feeling towards a specific subject/topic. This subconsciously creates biases that strongly influence future decisions when they even remotely connect with the subject/topic in question.

4 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
The complement system of defense is composed of proteins that are always present in the blood. Which statement describes the imp
Akimi4 [234]

Answer:

The correct answer is it causes immediate pathogen lysis.

Explanation:

The complement system is a part of innate immune system which is called first line of defense mechanism of our body.

         complement system along with various proteins and enzymes stimulate the phagocytic cells to attack the plasma membrane of foreign pathogen,Which ultimately result in the lysis of foreign pathogen by phagocytosis mechanism.

4 0
3 years ago
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I’m what ways are the roots and stems of a plant alike and different?
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One simple difference is that stems bear leaves, and roots don't. ... Similarity: Both stems and roots contain vascular tissues (xylem and phloem), the circulatory system of the plant. Difference: In herbaceous stems, the vascular tissues are contained in bundles; these bundles sit relatively near the surface of the stem.
6 0
3 years ago
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In the cross BB x bb, the percent of offspring in the F1 generation that will have the same genotype as one of their parents is
never [62]
All of the offspring will have genotype Bb, therefore the answer is 0%
7 0
3 years ago
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