Which of the following shows a reduction of chromosomes by half? Male gametophyte to flagellated sperm
Sporophyte to spores
Male gametophyte to spores
Female gametophyte to zygote

Answers

Answer 1
Answer: "Sporophyte to spores" is the one among the following choices given in the question that shows a reduction of chromosomes by half. The correct option among all the options that are given in the question is the second option. I hope that this is the answer that has actually come to your desired help.
Answer 2
Answer:

Answer: The correct answer is-  

A sporophyte can be described as the multicellular, diploid phase in the life cycle of plants and alga.

It is the dominant phase in higher plants ( such as angiosperms and gymnosperms) and undergoes alternation of generation with a haploid, gametophyte phase.

Sporophyte produces haploid spores ( having half the number of chromosome as their diploid parent cell) by a process of cell division called meiosis ( also termed as reductional cell division)

The spores fuse to form a dipolid zygote that undergoes mitotic division to produce the sporophyte again.

On the contrary, male and female gametophyte are already haploid.

Thus, second option is the right answer.


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Proteins are composed of which of these subunits? Select one: a. amino acids b. glucose molecules c. fatty acids d. nucleotides
During the production of gametes, the chromosomes condense, and the chromatids of homologous chromosomes cross over to form new allele combinations, which of thefollowing best describes the life cycle of this cell? 1, The cell will separate into two daughter cells next, and cytokinesis will occur. 2The cell is in prophase I of meiosis and will enter metaphase I next. 3The cell will make a copy of each chromosomein order to form diploid daughter cells.s o 4The cell is in interphase II of meiosis and will enter prophase II next

A crayfish’s swimmerets are used only for swimming.
a. True
b. False

Answers

Its false because lobsters have swimmerets as well and they dont use them only for swimming

How much electricity is required to treat and deliver the water used in America every year?

Answers

The answer is about 520 billion kilowatt-hours (kWh).

The energy from electricity is required in the water process to pump, clean, and transport. In the United States of America, it takes for about 520 billion kilowatt-hours of electricity to move, treat and heat the water.

Which of the following statements about developing the conclusion of a scientific study is true?O No part of a scientific study can be considered to reach a conclusion,
O Reaching a conclusion in a scientific study means future study is no longer viable or necessary.
O Sociologists study very focused subjects in order to be able to answer all questions about it.
O The conclusion of a scientific study functions as both an end and a beginning.

Answers

Answer:

the conclusion of a scientific study functions as both an end and beginning

in a given hybridization between two flowers, red "R" is dominant, and white "r" is recessive. In a cross between two white-flowered plants, all of the offspring had white flowers. If a plant grower wanted to produce red flowers, what should s/he consider during breeding?

Answers

Ans.

The dominant allele can be defined as the allele, which can express itself in both heterozygous and homozygous conditions. On the other hand, recessive allele can only express itself in homozygous condition (when both the alleles for recessive traits are present. It means presence of one dominant allele can hide the expression of recessive allele.

In given experimental flower, red color is dominant over white color of flower. So, 'if a plant grower wants to produce red flowers only, he should choose both the parent plants having red flowers as they have at least one allele for red color that would transfer to their offspring.'

Lets understand this in a calculative way,  

Let the parents genotype be RR and Rr

The offspring’s produced are – RR, Rr, Rr, RR, Thus all the offsprings are white as r is recessive, for producing a red flower the offspring must have “rr” genotype.  

Now if parents have Rr and rr genotype , then the offspring would have Rr, rr, rr, Rr giving two white and two red flower. Of the second case may be where both the parent white flower are the carrier with genotype “Rr”

Thus in order to produce red flower the parents with following genotypes is necessary –  

a) Both parents having Rr

b) One parents with rr and the other parent with Rr genotype

Chemical reactions in cells are faster than the same reactions outside cells. True False

Answers

True, mainly because cells use a catalyst to speed up the reaction rate.

What is the difference between glucose and ATP?(1 point)ATP is only a usable form of energy, but glucose can be used and stored.
ATP is a storable form of energy, while glucose is a usable form of energy.
Glucose is a storable form of energy, while ATP is a usable form of energy.
Glucose is only a storable form of energy, but ATP can be used and stored.

Answers

Glucose is a carbohydrate that is simple monomers. Glucose is used as the storable energy form, whereas ATP is a usable energy source. Thus, option C is correct.

What is ATP?

ATP is an abbreviated form of Adenosine 5′-triphosphate and is a molecule that provides energy to organisms. It provides cellular and metabolic energy by transferring its phosphate group.

ATP molecule undergoes hydrolysis to release its phosphate group to provide the energy needed and used by the cell for signaling, contraction, transportation, etc.

On the other hand, glucose is a monomeric sugar molecule that stores energy in its structure that undergoes breakdown to produce cell fuel called ATP.

Therefore, option C. ATP provides a usable form of energy but glucose stores energy.

Learn more about ATP here:

brainly.com/question/14846121

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Answer:

Its the last one i just taught this today