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inn [45]
3 years ago
6

How does DNA create chromosomes ?

Biology
1 answer:
Hunter-Best [27]3 years ago
3 0

Answer:

A single length of DNA is wrapped many times around lots of proteins? called histones, to form structures called nucleosomes. These nucleosomes then coil up tightly to create chromatin loops. The chromatin loops are then wrapped around each other to make a full chromosome.

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I NEED HELP PLS!!!! I WILL MARK AS BRAINLIEST!!!
True [87]

Answer:

Yes because genetic testing will provide enough evidice for the genetic disease. If you do so you can find diseases before they have long lasting effects on the hosts body

Explanation:

6 0
3 years ago
Do you think the shape of orchids is pure Mendelian inheritance, or is it more complex?
Mandarinka [93]

The genetic base of the shape of orchid is very complex.

Mendelian traits are described as simple traits determined by one gene. The different alleles of the gene contribute to the difference in the trait. This is true for some traits in plants, animals including humans and other organisms, but not for the shape of orchids.

The shape of orchid flowers is determined by the ABCDE group of genes that are responsible for the body plan in plants. These genes are the equivalent of HOX genes of animals.

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4 0
3 years ago
Read 2 more answers
Which is an advantage of sexual reproduction over asexual reproduction? A) increased number of organisms and decreased genetic v
ollegr [7]
B. is the answer hoped it helped
3 0
3 years ago
.<br> What are the major factors that cause cell growth?
yanalaym [24]

Answer:

External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells. Two of the most important internal factors are kinases and cyclins.

7 0
3 years ago
Captive breeding: a) has allowed for the reintroduction of many species to areas from which they had disappeared.b) does not req
Snezhnost [94]

Answer:

Option-D

Explanation:

Captive breeding or breeding in the captivity is the conservation technique employed by the government to conserve nature.

Captivity breeding is also known as the captive propagation of animals in which animals are kept either in their natural habitat (ex-situ conservation) or in artificial conditions like in zoos where condition similar to the habitat of animal are created.

The breeding programme aims at conserving the natural habitat of the animals to prevent the endangered species from extinction. The endangered species are at risk of extinction due to loss of fragmentation, pollution, predation and others.

Thus, Option-d is the correct answer.

4 0
3 years ago
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