What is the name of the sugar that makes up DNA?

The enzyme helicase unwinds the DNA duplex. Which of the following is likely to be true?

Oksanka [162]

Answer:

B) Helicase uses energy from ATP Hydrolysis

Explanation:

Helicase's primary function is to separate the annealed nucleic acid strands. It is a motor protein and moves directionally along the phosphodiester backbone. It usually separates strands of double helix DNA or self annealed RNA. It used the energy from ATP hydrolysis and breaks hydrogen bonds between nucleotide bases.

In human body 95 types of helicases are found. They have sequence motifs required for ATP binding, ATP hydrolysis and translocation along nucleic acid phosphodiester backbone. The variable portion in their amino acid sequence imparts specific feature to each helicase.

5 0

3 years ago

When does fog usually form in inlets and bays?

Bess [88]

Fog occurs in inlets and bays when the water temperature is warm enough for water vapor to evaporate off of these water bodies and the external temperature is cool enough close to the bodies of water for condensation to occur. The water vapor from the water bodies contain nuclei by which the clouds can form and if the air is cool enough this will occur over the water body relatively quickly. This may occur more in the early mornings or late afternoons.

3 0

3 years ago

Anterior lobe of pituitary gland is

IrinaK [193]

Answer:

anterior pituitary

Explanation:

6 0

3 years ago

Read 2 more answers

Depending on the organism the number of in a cell may change

timurjin [86]

Depending on the organism the number of chromosomes in a cell may change.

Different organisms have a different number of chromosomes, for example we have 46 and a fruit-fly(drosophila melanogaster) has 8.

5 0

4 years ago

Joe is color blind. His mother and father have normal vision, but his mother's father (Joe's maternal grandfather) is color blin

NNADVOKAT [17]

<u>Answer:</u>

a. Using correct symbols and labels, draw a pedigree of Joe's family. Take a picture and send it by email.

The pedigree image is attached at the end.

(b) What is the most likely mode of inheritance for color-blindness in Joe’s family?

X-linked recessive. Only males have the trait, and they inherit the trait from

their mothers, who are carriers. The trait is never passed from father to son.

(c) If Joe marries a woman who has no family history of color-blindness, what is the probability that their first child will be a color-blind boy?

Barring a new mutation or nondisjunction, zero. Joe cannot pass his color-blind X chromosome to his son.

(d) If Joe marries a woman who is a carrier of the color-blind allele, what is the probability that their first child will be a color-blind boy?

The probability is ¼. There is ½ probability that their first child will be a boy,

and there is an independent ½ probability that the first child will inherit the

color-blind X chromosome from the carrier mother. ½(½) = ¼.

7 0

3 years ago