QUESTION 1 Which of the following genetic techniques does NOT use labelled DNA probes?

The following picture shows the three primary types of plate boundaries. Which boundary is being shown in label A? an arrow poin

IceJOKER [234]

Answer:

The label A corresponds to Convergent boundary zones

Explanation:

When two oceanic plates collide, it occurs oceanic convergence. The thicker and older plate subduces under the other plate, and at this point, it starts the volcanic activity. As the thicker plate descends, it is heated and melted and its materials are incorporated into the mantle. The fast subduction originates magma that ascends to the surface by crevices. This makes place to the formation of grouped volcanic islands, the island arches. Subduction zones coincide with deep-sea trenches or depressions in the ocean bed. The volcanic islands are arranged in a circumference arch shape, which is bordered by a fossa. Most of these are located in the western Pacific, where the pacific crust is older and thicker, and hence it submerges easier in the mantle.

6 0

3 years ago

ER, Golgi body and other membrane bound organelles often work together to produce a finished functional product. What structure

Anvisha [2.4K]

The ER synthesizes most substances of the cell, and then the Golgi body ins the one to classify, distribute, and modify them.

The proteins forming the cytoskeleton are the ones that hold everything in place.

The main proteins doing this are the microtubules, microfilaments, and Intermediate filaments.

Also, mention the carrier proteins, that move substances inside the cell.

6 0

3 years ago

Chlorophyll molecules are in which part of the chloroplast?

Zielflug [23.3K]

Answer:

thylakoid membrane

Explanation:

The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the stroma

7 0

3 years ago

what happens to an ecosystem as biodiversity increase? are there impacts to human? economies or survival? explain

Tpy6a [65]

Answer:

But certain stressors, most of them human-caused or human-influenced, threaten or reduce biodiversity. Because the creatures and plants in ecosystems are interdependent, the loss of even one species can have profound effects on the entire ecosystem, can affect other ecosystems and can endanger people as well.

8 0

4 years ago

Explain how the independent alignment of homologs, and also crossing-over during the first meiotic division, each contribute to

BartSMP [9]

Answer: Homologous chromosomes are randomly distributed to daughter cells, this means different chromosomes segregate independently of each other. And they exchange segments of DNA during crossing over. This recombination creates genetic diversity because genes from each parent are exchanged.

Explanation:

Meiosis is a type of cell division that produces gamete cells, which are sex cells (egg and sperm)

Chromosomes that form a pair and are found together are called homologous chromosomes, and they are inherited from each parent. During prophase of meiosis I, the homologous chromosomes exchange segments of DNA in a process called crossing over. This recombination creates genetic diversity because genes from each parent are exchanged. It results in new combinations of genes on each chromosome.

After that, during the anaphase of meiosis I, the two chromosomes line up on the equatorial plane of the cell. Then, they are separated and each will go to a new daughter cell. So homologous chromosomes are randomly distributed to daughter cells, this means different chromosomes segregate independently of each other.

3 0

3 years ago