What characteristics do mutations have?

Answers

Answer 1
Answer: Always harmful
occasionally beneficial
omission is information
addition of information
mistakes in reproduction
Answer 2
Answer: Change in DNA

Changes are mostly positive

change in chromosome number

Related Questions

Which of the following is an example of an endothermic process?Melting Exploding Freezing Burning
Why is the frogs tongue anchored in the very front
HEEELLLLPPPPPPP!!!!!!In which way are photosynthesis and cellular respiration different?A) Cellular respiration releases ADP, while photosynthesis releases ATP. B) Cellular respiration produces oxygen, while photosynthesis uses oxygen. C) Photosynthesis releases light energy, while cellular respiration stores chemical energy. D) Photosynthesis uses light energy, while cellular respiration uses chemical energy.
Which of the following describes why wetlands are important to the water cycle?A.Dense vegetation helps filter out pollutants in the water.B.Open meadows help to filtr out pollutants in the water.C. Dense vegetation allows for biological magnification in the water.D. Open meadows allow for biological magnification in the water.
Cytokinesis is the division of the cell's_______

Which of the following is not a possible consequence of being exposed to radiation?a. Cancer
c. Genetic mutations
b. Enhanced physical ability
d. Damage of reproductive organs
The distance traveled by an object divided by the time it takes to travel that distance is called
a. average velocity.
c. average acceleration.
b. average speed.
d. activity.

Answers

For the first question it would be (B), enhanced physical ability, because this is just a myth
and the second question would be (B) for average speed. d/t=average speed, think of it like 2m/s it's meters per second, distance over time

What do the moss life cycle and the fern life cycle have in common?A) Double fertilization produces a 3n cell
B)Seeds are protected and nourished by a fruit
C)The zygote is the first cell of the gametophyte phase
D) Fertilization produces a diploid cell.

Answers

Fertilization produces a diploid cell is the common phase that occurs in the life cycle of both the moss and fern. Hence, the correct option is D.

What is fertilization?

Fertilization refers to the fusion of haploid gametes of the male and female to produce a diploid cell, which is called zygote.

Mosses belong to bryophytes and ferns belong to class pteridophytes. Both undergo sexual and asexual reproduction. They undergo asexual reproduction by the production of spores, while sexual reproduction with the formation of gametes.

Both undergo  oogamous mode of sexual reproduction with the formation of zygote that is diploid in nature. It is facilitated by the fusion of non-motile female gamete with the motile male gamete, which is termed as sperm.

Therefore, the correct option is D.

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Answer;

D) Fertilization produces a diploid cell.

Explanation;

In mosses;  A single spore germinates to form a branched, filamentous protonema, from which a leafy gametophyte develops. The gametophyte bears organs for sexual reproduction. Sperm, which are released by the mature antheridium (the male reproductive organ), are attracted into the neck of an archegonium (the female reproductive organ). Here, one sperm fuses with the egg (fertilization) to produce the diploid zygote.

The life cycle of a fern is very different from the life cycle of many other plants. Ferns have an intermediate stage, called a gametophyte, which then grows into a mature fern. During Gametophyte stge, the spores are produced on the underside of mature plants. These will germinate and grow into small, heart-shaped plants called gametophytes.  The gametophytes produce both sperm and egg cells, and will fertilize itself, or others to yield a diploid cell.

The main function of _____ tissue is communication between different parts of the body.connective
epithelial
nervous
muscular

Answers

Neevous tissue bevause the brain sends signals around the body

Answer:

nervous

Explanation:

The nervous tissue is one of the four basic tissues of the organism, it is formed by two types of cellular elements, it represents the fundamental component of the structures and organs that make up the nervous system. The main function of the nervous tissue is to capture internal and external stimuli and transform them into nerve impulses. All modifications of the external or internal environment and sensory stimuli such as temperature, pressure, light, sounds and taste, among others, are detected, examined and transmitted by nerve cells. On the other hand, the nervous tissue is in charge of coordinating the motor, glandular, and visceral functions of the individual.

Where is the electron transport chain for cellular respiration located?

Answers

Answer;

-The electron transport chain takes place in and across the inner membrane of the mitochondrion.

Explanation;

-The electron transport chain is a series of electron transporters embedded in the inner mitochondrial membrane that shuttles electrons from NADH and FADH2 to molecular oxygen. In the process, protons are pumped from the mitochondrial matrix to the intermembrane space, and oxygen is reduced to form water.

-It functions to make energy in the form of ATP, it is the third phase of cellular respiration.

The electron transport chain for cellular respiration is located in the inner mitochondrial membrane of eukaryotic cells.

Within the mitochondria, which are the "powerhouses" of the cell responsible for generating energy in the form of ATP, the electron transport chain is situated in the inner membrane.

The inner mitochondrial membrane is highly folded into structures called cristae, which provide a large surface area for the electron transport chain components. This arrangement allows for efficient electron transfer and energy production during cellular respiration.

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In which phase of mitosis do chromosomes line up at the middle of the cell?

Answers

chromosomes align on the middle of the cell during metaphase

Which deseases can effect the heart specifically

Answers

Coronary heart disease, heart valve disease, congenital heart disease, pericardial disease, Aorta disease, cardiomyopathy, and vascular disease. I'm sure I'm missing some
congestive heart failure is another one