The pancreas produces the peptide hormone known as human insulin, which is essential for controlling blood sugar levels. There are two peptide chains in it, joined together by disulfide bonds.
An "A" chain and a "B" chain are the two peptide chains that make up human insulin. The A and B chains' amino acid sequences are arranged as follows:
A Chain (21 amino acids):
GIVEQCCTSICSLYQLENYCN
B Chain (30 amino acids):
FVNQHLCGSHLVEALYLVCGERGFFYTPKT
The 51 amino acids of human insulin make up the entire protein. Human insulin has a molecular mass of around 5808 Da (Daltons).
Dimer: Since human insulin is made up of two peptide chains (A and B chains) connected by disulfide bonds, it is a dimer.
Peptide Chains: The A chain and the B chain are the two peptide chains that make up human insulin.
Location: The beta cells of the pancreatic islets of Langerhans generate and secrete human insulin.
Learn more about amino acids:
Human insulin is a peptide hormone consisting of 51 amino acids across two chains. The primary amino acid sequence of chain A includes Gly, Ile, Val, and others. Insulin, a dimer, circulates in the bloodstream and binds to insulin receptors on cells.
The protein of interest I will elaborate on is human insulin. Insulin is a peptide hormone produced by beta cells in the pancreas. It has a total of 51 amino acids divided into two peptide chains linked by disulfide bridges, Chain A and Chain B. Chain A has 21 amino acids while Chain B has 30.
The primary amino acid sequence of chain A of human insulin starts with: Gly, Ile, Val, Glu, Gln, Cys, Cys, Thr, Ser, Ile, Cys, Ser. The molecular mass of insulin is approximately 5808 Da.
Insulin is a dimer in its storage form but functions as a monomer when it is actively binding to receptors. As it is a hormone, it circulates in the bloodstream and binds to insulin receptors on cells to promote glucose uptake.
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If RRYY and RrYy is crossed the probability of the offspring having wrinkled and yellow seed is none (zero).
Further Explanation:
Dominant character is the trait that masks the effect of the other character and is phenotypically shown. Whereas, the characters which is been masked is referred to be as recessive character.
In the given case,
• R- Denotes the dominant round seed character.
• r- Represents wrinkled recessive character.
• Y- Shows the dominant character of yellow colored seeds.
• y- Is used to represent the green color recessive trait.
Mentioned below are the possible homo and hetrozygotes of the trait;
YY – Dominant homozygote which represents the yellow seeds.
yy – Recessive homozygote representing green color seed.
Yy – Dominant hetrozygote that represents yellow seeds.
RR – Dominant homozygote representing round seeds.
Rr – Dominant hetrozygote representing round seeds.
rr – Recessive homozygote representing wrinkled seeds.
In the given instance for the offspring to have wrinkled and yellow seed it should have the genotype of rrYy or rrYY.
If the cross of RRYY and RrYy is done as shown in the punnett square; the required condition is not possible.
Learn more:
1. Learn more about meiosis brainly.com/question/1600165
2. Learn more about the process of molecular diffusion in a cell brainly.com/question/1600165
3. Learn more about human sperm and egg cell brainly.com/question/1626319
Answer Details:
Grade: High School
Subject: Biology
Chapter: Genetics- Mendalian Inheritance
Keywords:
RRYY, RrYy, round seeds, wrinkled seeds, yellow seeds, green seeds, Mendel, heterozygotes, homozygotes, dominant, recessive.
The correct answer is option C which is globular. And the correct statement is:
Globular star cluster forms from tightly packed groups of older stars.
The type of star cluster that forms from tightly packed group of older stars is called “The Globular cluster.”
Globular cluster is known to contain large group of old stars that are tightly and closely packed accordingly in a symmetrical but spherical form.
Globular clusters are the largest and most enormous star clusters, and are known to usually appear in roughly spherical forms.
Globular clusters are usually formed through molecules of giant cloud, or enormous masses of gas that form stars due to their collapse. Notably, globular clusters cannot form today as a result of the current limited availability of free gas compared to its abundance at the early stage of the universe.
Globular clusters are found to be the oldest objects existing in the Galaxy. Globular clusters are said to contain between hundreds of thousands and millions of stars, and are heavily distinguished among other clusters due to their old age uniformity.
The relative ages of elements in globular clusters ranges from 11 billion to 13 billion years after being determined by comparing stellar population of globular clusters with stellar evolutionary models.
It should be noted that they could be as young as 9 billion years old based on modern developed research models.
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