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3 years ago

What characteristic of the subunits allows for a uniform diameter of the double helix?

1 answer:

5 0

The diameter of the DNA double helix is uniform throughout because a purine (two rings) always pairs with a pyrimidine (one ring) and their combined lengths are always equal.

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1. Who is widely considered to be the

4vir4ik [10]

Answer:

A. gregory mendel

Explanation:

I did a biography on him in 8th grade

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3 years ago

Read 2 more answers

Help me labels this

bija089 [108]

Answer:

Here are the labels:

6. Zygomatic bone

7. Vomer

8. Mandible

9. Maxilla

18. Sternum

19. Costal cartilage

20. True ribs

21. False ribs

22. Floating ribs

Explanation:

The skull comprises the 8 cranial bones that house and protect the brain and 14 facial bones that protect the sensitive organs such as eyes, nose and mouth.
Out of the 14 facial bones, the mandible, maxilla, zygomatic and vomer along with the frontal bone are the primary bones of the skull.
The rib cage comprises of 12 pairs of ribs connected to the sternum, the main bone that anchors the rib cage, through the costal cartilage.
The ribs numbered 1 to 7 are called true ribs because costal cartilage connects these bones directly to the sternum.
The ribs 8 to 12 are classified as false ribs because they are not directly connected to the sternum.
The last two ribs 11 and 12 are called floating ribs because they do not connect to the sternum at all.

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3 years ago

Which of the following terms means a group of connected or related objects or materials

viktelen [127]

I Think relativity but idek

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3 years ago

A variety of opium poppy (Papaver somniferum L.) having lacerated leaves was crossed with a variety that has normal leaves. All

Ainat [17]

Answer:

The correct answer is-

F1 - AaBb (lacerate)

F2 - A_B_; A_bb; and aaB_ (lacerate)

- aabb (normal)

2. Two genes, with a dominant allele at either or both loci.

Explanation:

The given information gives THE following data:

Dominant: Lancerate leaves - AABB

Recessive: normal leaves - aabb

F1 has - all Lacerated leaves - AaBb

F2 by selfing F1:

AB Ab aB ab

AB AABB AABb AaBB AaBb

Ab AABb AAbb AaBb Aabb

aB AaBB AaBb aaBB aaBb

ab AaBb Aabb aaBb aabb

Here, 15/16 = lacerate which is 0.94 which is equal to the value of lacerate given in the question - 249/265 = 0.94

And normal 1/16 = 0.062 is almost same as 16/265 = 0.060

Thus, the genotypes of -

F1 - AaBb (lacerate)

F2 - A_B_; A_bb; and aaB_ (lacerate)

- aabb (normal)

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3 years ago

Which class of vertebrates is considered to be the first to develop lungs, allowing them to become terrestrial organisms?

Alexeev081 [22]

D) Amphibia was considered to be the first to develop lungs

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3 years ago