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4 years ago

Is DNA always wrapped around histones? Or is it just when it starts to condense into a chromosome?

1 answer:

8 0

DNA packaging. Each chromosome consists of one continuous thread-like molecule of DNA coiled tightly around proteins, and contains a portion of the 6,400,000,000 basepairs (DNA building blocks) that make up your DNA. The way DNA is packaged into chromosome is a factor in how protein production is controlled.

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How can you determine an ecosystem's biodiversity?

GrogVix [38]

Explanation: you can see biodiversity by how many different organisms live in that place

bi·o·di·ver·si·ty

/ˌbīōdiˈvərsədē,ˌbīōˌdīˈvərsədē/

noun

noun: biodiversity; noun: bio-diversity

the variety of life in the world or in a particular habitat or ecosystem.

4 0

3 years ago

3. A student wanted to study the effect of temperature on algae levels in a local stream. Which items are most useful for gather

tatyana61 [14]

Answer:

D. can be your answer

Explanation:

because she is testing and finding differnt results which can help her find the algae levels in a local stream.

7 0

3 years ago

Match the following:Part A1. Transverse foramina present.2. No canals or foramen present. It articulates superiorly with the sac

Stels [109]

Answer:

1. Transverse foramina present: Cervical

2. No canals or foramen present. It articulates superiorly with the sacrum: Coccyx

3. Receive the most stress: Lumbar

4. Attach to ribs: Thoracic

5. Articulates with hip bones of the pelvis: Sacrum

Explanation:

The vertebral column is a series of 33 bones called vertebrae that play a key role in organ protection, movement of body, and overall support. The column has been divided into 5 different regions with the number of bones.

1. Cervical Vertebrate: These are the group of seven vertebrae of the neck, start immediately below the skull. Two cervical bones C1 and C2 are unique in function. They are responsible for the movement of the head. They have transverse foramina which gives passage to vertebral artery and vein.

2. Thoracic Vertebrae: They are a group of twelve small bones that form the vertebral spine in the upper trunk. The function of the thoracic vertebrae is to articulate with ribs to produce the bony thorax.

3. Lumbar Vertebrae: This is the largest segment of the vertebral column that consists of 5 bones between the rib cage and pelvis. They carry all of the upper body weight providing flexibility and movement to the trunk region. This is why it can receive the most stress easily.

4. Sacrum Vertebrae: There are 5 sacral vertebral fused bones. It connects to the hip bones and play role in forming a strong pelvis.

5. coccyx Vertebrae: These are a group of 4 fused bone. There is no vertebral canal due to a lack of vertebral arches. They provide an attachment site for muscles ligament and tendons. They also play a role in stabilization and support while sitting.

5 0

3 years ago

The purpose of cell division

posledela

Cell devision has three main purposes; repairing the organism, reproduction and growth. Repairing the organism is important because it will allow the organism to survive longer. Reproduction is important because it allows the species of organism to live and survive longer. Growth is important because it allows the organism to grow larger and stronger.

6 0

4 years ago

A point mutation changes the DNA sequence CGA to CGT, but the same protein is still produced. Which point n

Mashcka [7]

The correct answer is silent mutation .
There are sequences present in the body where a point mutation occurs but the protein formed is still the same

8 0

3 years ago