Which best describes reproduction

Which of the following is an input to the light dependent reaction?

viva [34]

Answer: A class hypothesized that water pollution affects the growth of ... These reactions take the light-dependent reactions and perform further chemical.

66 pages

Explanation:

JESUS SAVES EVERYONE JUST PRAY, HE IS ALWAYS LISTINING !

4 0

8 months ago

it is often useful for scientists to study a population of cells that are all at the same stage of the cell cycle. for example,

inn [45]

It is often useful for scientists to study a population of cells that are all at the same stage of the cell cycle.

<h3>Why the discovery of cyclins and cdks was enabled?</h3>

The discovery of cyclins and cdks was enabled by studying frog eggs that divided synchronously after fertilization; extracts from the embryos were thus representative of the cell-cycle stage at which the extract was made.

Researchers have devised means to synchronize asynchronous populations of cultured cells. for example, serum starvation deprives cells of mitogens and blocks cells in the g0/g1 phase of the cell cycle.

Therefore, It is often useful for scientists to study a population of cells that are all at the same stage of the cell cycle.

Learn more about cell cycle on:

brainly.com/question/15876101

#SPJ1

7 0

11 months ago

_________ occurs during meiosis but not during mitosis?

Dafna11 [192]

Answer: Crossing over

Explanation:

In meiosis, chromatids are made to exchange their genetic material during Prophase to allow the formation of offspring that are genetically different from their parents.

The process of exchange is called CROSSING OVER. And it occurs through a contact point known as Chiasma.

6 0

2 years ago

The degradation of the environment from litter is a A. a negative externality. B. free rider problem. C. Tragedy of the Commons.

AlekseyPX

Answer:

D. Both a and c are correct.

Explanation:

The tragedy of the commons is a situation in a shared-resource system where individual users, acting independently according to their own self-interest, behave contrary to the common good of all users by depleting or spoiling the shared resource through their collective action.

It damages our environment (plants, animals) and impacts local tourism. It is smelly and dirty, and carries germs, bacteria and viruses. Places with a high degree of littering see a decreases in property values, and are more likely to be the site of fires.

Pollution is a negative externality. Economists illustrate the social costs of production with a demand and supply diagram. The social costs include the private costs of production incurred by the company and the external costs of pollution that are passed on to society.

Blowing litter can cause automobile accidents as well as land and air pollutions

7 0

3 years ago

2.Which of the following represents a genetic cross between 2 individuals that are each heterozygous for both traits?

wariber [46]

Answer:

A. AaBb x AaBb

Explanation:

The term heterozygous refers to the presence of two different alleles of same gene in an organism. The one allele can be of wild type (original type) and one can be mutated or newly formed.

In the question, two traits are represented by two letters, A and B and alleles as A and a and B and b, respectively. We are asked about a cross involving two traits and two individuals in such a way that both are heterozygous.

If we look at option A, AaBb x AaBb,

we see that one trait A and the other trait B is in heterozygous form (Aa and Bb) in both individuals.

If we look at option B. AABB x AABB

we see that one trait A and the other trait B is in homozygous form form (AA and BB) in both individuals. Homozygous means when the alleles are same for each trait in an individual.

If we look at option C,Aa x Bb

There are not two traits, one trait of one individual and other trait of other individual is being crossed that is not possible.

If we look at option D. AAaa x BBbb

Again, the individuals are homozygous for two traits.

Therefore, A is best option.

Hope it helps!

7 0

3 years ago