In the life cycle of a moss, the sporophyte remains attached to the _________

In most normal human somatic cells, telomeres shorten with each division. In stem cells and in cancer cells, however, telomere l

julia-pushkina [17]

Answer:

Provides both the RNA and the polymerase needed for synthesis

Explanation:

Telomerase is an enzyme which extends the telomere sequences present at the end of the chromosomes. The telomerase enzyme acts as DNA polymerase as well as provides the RNA which serves as a template strand rather than the primer.

The polymerase acts as a reverse transcriptase enzyme and synthesizes the DNA strand from the RNA template. Since the telomerase provides RNA and acts as DNA polymerase, therefore, it is known as the ribonucleoprotein molecule.

Thus, the selected option is correct.

7 0

3 years ago

Review the diagram of the animal cell given below and answer the following questions:

natta225 [31]

Animal cells are a usual example of a eukaryotic cell, enveloped by a plasma membrane, and comprising a membrane-bound nucleus and organelles. Like the cells of plants and fungi, they do not exhibit cell wall.

The labeling in the mentioned diagram is:

A. Rough endoplasmic reticulum

B. Cytoplasm

C. Smooth endoplasmic reticulum

D. Nucleolus

E. Nucleus

F. Mitochondria

G. Golgi apparatus

H. Lysosome

I. Plasma membrane

The Golgi apparatus functions closely with the rough endoplasmic reticulum. When a protein is formed in the rough endoplasmic reticulum, then the formation of transition vesicle takes place. This vesicle or sac floats via the cytoplasm to the Golgi apparatus and is then absorbed. From there, the vesicle travels to the membrane of the cell and the molecules are then discharged out of the cell.

5 0

3 years ago

How does the electron transport chain active during the Krebs cycle affect the hydrogen ion concentration in a mitochondria

belka [17]

Electron transport trains create a concentration gradient of hydrogen ions outside the mitochondria and fewer inside the mitochondria and creates energy(ATP) by diffusing the hydrogen ions back in

8 0

4 years ago

An animal cell is growing and is active. The cell is going through which subphase of interphase?

valina [46]

G1 stage is the first of four periods of the cell cycle that occur in eukaryotic cell division. In this piece of interphase, the cell orchestrates mRNA and proteins in readiness for resulting steps prompting mitosis. G1 stage closes when the cell moves into the S period of interphase.

7 0

4 years ago

Read 2 more answers

Different microbes grow in a wide variety of environmental conditions; however, most have preferences for certain temperatures,

lesya692 [45]

Answer:

this is a TRUE statement.

Explanation:

Different microbes grow in a wide variety of environmental conditions; however, most have preferences for certain temperatures, pH, and atmospheric gases because although microbes are widespread in their occurrence,they are found almost everywhere,in the air,water,soil,food,decaying matter,oil deposits,in plants etc.

but their number and their types vary according to the locality and environmental conditions.

Although, some microbes are always present and contribute towards natural flora BUT besides this others are present in specific environments such as some in hot springs bearing very HIGH TEMPERATURE RANGES for example: Thermus aquaticus.

some of them inhabit the acidic or alkaline soil feeding on HUMUS.

Most of the microbes prefer ATMOSPHERIC GASES i.e some require oxygen for their survival .For example: Pseudomonas.

some don't require O2 for survival i.e Spirochete.

IN SHORT, most of the microbes have preferences for various environmental conditions.

5 0

3 years ago

In the life cycle of a moss, the sporophyte remains attached to the __________