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Sauron [17]
3 years ago
8

Please help! Multiple choice question.

Biology
1 answer:
koban [17]3 years ago
4 0
I’m pretty sure it’s a. sorry if i’m wrong <3
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Which statement is true?
katen-ka-za [31]
<span>The correct statement is letter C. All arteries except the pulmonary artery carry oxygen-rich blood. Most arteries are responsible for the delivery of oxygen and nutrients to all cells and the pulmonary veins are the one who transfer oxygenated blood from the lungs to the heart.</span>
4 0
3 years ago
Tertiary structures of proteins can be very complex. Analyzing and recognizing common structural patterns is the first step in u
Sedaia [141]

Answer:

a. Always independently stable. Domain

b. Retains native structure even when separated from the rest of the protein. Domain

c. β Barrel. Motif

d. Calcium-binding segments of calmodulin. Motif

e. An advantageous folding pattern composed of two or more secondary structure elements. Domain

f. Sometimes independently stable. Motif

Explanation:  

a. Protein domains are evolutionary conserved and stable 3D structures formed by a series of amino acids joined by peptide bonds.

b. Domains are stable because they conserve their tridimensional structure in physiological conditions even if they are separated of the rest of the protein.

c. The ß-barrel motif is a type of motif localized in single-stranded DNA viruses.

d. Calmodulin is a protein that contains calcium-binding motifs that enable to sense intracellular calcium levels.

e. Domain folding patterns are critical transitional states that allow the proteins their interaction with specific ligands in different physiological conditions.

f. Motifs are sometimes independently stable, but due to their short length (3-15 amino acids), protein motifs are generally unstable in different conditions.

8 0
3 years ago
In tomatoes, two alleles of onegene determines whether the plant has purple (P) or green (G) stems, and a separate, independent
Degger [83]

Answer:

The correct answer will be G/G ; P/p x g/g ; P/p

Explanation:

Let G be the dominant allele for stem color and g be the recessive allele for stem color. Let P be the dominant allele for leave shape and p be the recessive allele for leave shape.

5 0
3 years ago
In humans, which sex chromosome determines if an offspring is a male or female? a) x b) y
igomit [66]
The male sperm determines whether it is a girl or a boy, if it has XX chromosomes it is a girl if it has XY chromosomes it is a boy. Males can only receive Y chromosomes from their fathers.
Hope This Helps!

3 0
4 years ago
Read 2 more answers
Which type of chlorophyll is rare in xanthophyceae and is only determine its two genera
olga55 [171]
The answer is Chlorophyll
3 0
2 years ago
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