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3 years ago

Why are enzymes specific to a certain reaction?

1 answer:

8 0

Enzymes bind with chemical reactants called substrates. There may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. In some reactions, a single-reactant substrate is broken down into multiple products. ... The enzyme's active site binds to the substrate.

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Why is Type O- the universal donor? Check all that apply.

Ksivusya [100]

The Type O blood group is commonly called as universal donor because any blood group can receive the O blood group. The blood group O has no antigen. Due to the absence of antigen it doesn't agglutinate when come in contact with other blood groups in the plasma.

The agglutination reaction happens when opposite antigen and antibody reacts with each other. e.g.- Blood group A contains antigen A and antibody b and the blood group B contains antigen B and antibody a. Agglutination reaction occurs when the antigen A reacts with antibody a. As O blood group has no antigen, agglutination reaction doesn't occur.

6 0

2 years ago

When does the mountain banshee become prey?

svetoff [14.1K]

Answer:

Mountain banshees are large, dragon-like aerial predators Bonding with a banshee and becoming an Ikran Makto is dangerous and required the banshee or its rider can bond with a new partner should the previous one die

Explanation:

4 0

3 years ago

Read 2 more answers

In maize, a dominant allele A is necessary for seed color, as opposed to colorless (a). Another gene has a recessive allele wx t

Gelneren [198K]

Answer:

1/2 Aa Wx wx (colored seeds, normal starch)
1/2 aa Wx wx (colorless seed, normal starch).

Explanation:

A (colored seed) is dominant over a (colorless)
Wx (normal starch) is dominant over wx (waxy)

Both loci are independent.

A Aa WxWx individual was test crossed (crossed with a homozygous recessive aa wxwx individual).

The homozygous recessive can only produce a wx gametes.
The dihybrid individual can produce two types of gametes, all of them with the same frequency because the genes segregate independently: 1/2 A Wx and 1/2 a Wx

The possible offspring resulting from the combination of those gametes is:

1/2 Aa Wx wx (colored seeds, normal starch)
1/2 aa Wx wx (colorless seed, normal starch).

7 0

2 years ago

Suppose that in humans the ability to roll the tongue (R) is dominant to being unable to roll it (r), and having freckles (F) is

tatuchka [14]

Answer:

1/4

Explanation:

A heterozygous woman for both traits (RrFf) marries with a man with no freckles (ff) who can't roll his tongue (rr).

The cross is: RrFf X rrff.

The woman can produce the gametes RF, Rf, rF and rf

The man can only produce rf gametes.

The possible offspring that can arise from the combination of those gametes is:

1/4 RrFf Freckled, tongue-rolling
1/4 Rrff Freckled, unable to roll tongue
1/4 rrFf Not freckled, tongue-rolling
1/4 rrff Not freckled, unable to roll tongue

4 0

3 years ago

Select all that apply.

bezimeni [28]

I think the answer is c yeah I just think that

8 0

2 years ago