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mote1985 [20]
3 years ago
6

When was the first time a scientist has used fruit flies to study DNA?

Biology
1 answer:
Nitella [24]3 years ago
8 0

Answer:

I think it was Thomas Hunt Morgan

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Organic chemistry focuses on __________.
wel
Organic Chemistry is the study of the structure, properties, composition, reactions and preparation of carbon containing compounds. 
I Hope this Helped!

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6 0
3 years ago
Glucagon, a peptide hormone, is upregulated when blood sugar levels are low. Which molecules in or on the plasma membrane would
Arlecino [84]

Answer: Receptor protein.

Explanation:

The receptor protein on the cell surface would enable a cell to respond to glucagon. The glucagon binds to the GPCR on the liver and muscle cells and is known as glucagon receptor.

This receptor then stimulates cells to release glucose into the blood stream. Another hormones involved during this process is glucagon like peptide 1.

It works by binding to another GPCR which is GLP-1 receptor found on the pancreatic cells.

4 0
4 years ago
What are the frequencies of each offspring genotype in a cross between rr female and a rr male?
Vera_Pavlovna [14]
Since the male and the female have recessive alleles of this gene, all of their offspring will be like that too.
rr x rr cross will result in 100% of the offspring with the genotype: rr

R- dominant (but none of the parents has this allele)
r- recessive
4 0
3 years ago
The calvin-benson cycle takes in _____________ and _____________ from the light reaction and also _____________ ____________ to
butalik [34]
The light reactions take place in the _________ and the Calvin cycle takes place in the _________.

stroma; thylakoids
thylakoids; stroma
inner membrane; outer membrane
chloroplasts; mitochondria
mitochondria; chloroplasts

thylakoids; stroma

Within the chloroplast, the light reactions take place in the flattened sacs called thylakoids and the Calvin cycle takes place in the thick fluid called the stroma.

Hope this helps.
4 0
3 years ago
In the Gross Anatomy of Muscle Lab Manual, the triceps brachii is considered what in the action of the extension of an elbow?
Anna11 [10]

Answer:

prime mover or agonist

Explanation:

The triceps muscles are responsible for performing the action on one side of the joint and hence they are termed as agonist while on the other hand the muscle which opposes this action is called an antagonist.  

During elbow flexion, triceps causes the action by contracting and hence it acts as agonist.  This muscle lies on the posterior side of Humerus and work as a third class lever.  

7 0
3 years ago
Read 2 more answers
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