how many rounds of dna replication are there in a meiotic cell cycle?

Answers

Answer 1

Answer:

Two rounds

Explanation:

Meiosis is characterized by one round of DNA replication followed by two rounds of cell division, resulting in haploid germ cells. Crossing-over of DNA results in genetic exchange of genes between maternal and paternal DNA.


Related Questions

Proteins contain ___ different
amino acids, whereas DNA
and RNA are composed
of different ___ nucleotides.

Answers

protein contain 23 different amino acids whereas DNA and Rna are composed of different 4 nucleotides

As a result of an injury in gallbladder of a person, it had been removed surgically, which of the following processes can be affected by this? *

a. The removal of amino groups of proteins.
B. The digestion of carbohydrates.
C. The breaking down of peptide bonds of proteins.
D. The digestion of fats

Answers

Answer:

D

Explanation:

Why can populations of invasive species increase rapidly in new environments

Answers

Answer:

they have no preditors  in that current enviroment that can or is used to eating them so they just grow with no resistance    

Explanation:

Which of the following characteristics do homologous chromosomes exhibit?.

Answers

Homologous chromosomes carry alleles of the same traits and therefore, carry the genetic information for the same trait.

Homologous chromosomes are a pair of chromosomes with the same gene sequence but of different origins - one paternal and the other maternal.

Thus, homologous chromosomes carry the same traits, although could be of different forms. For example, one of the chromosomes might carry a gene for tallness while the other might carry a gene for shortness even though both tallness/shortness represent a gene for height.

More about homologous chromosomes can be found here: https://brainly.com/question/22613446?referrer=searchResults

A mouse's tail gets cut off. If the mouse has babies later, how will this affect the length of the tails of its offspring

Answers

Answer:

no it will not affect the length of the tails of any of the offspring.

PLEASE HELP !!!!
What are their chances of having a child that has A+ blood?

Answers

Answer:

I think it must be 25%

Explanation:

Not sure how to explain

Answer:

3 in 8 people

Explanation:

If you have type A blood, your parents had one of the following possible combinations of blood types: AB and AB. AB and B. AB and A.

Calculate the kinetic energy of a
30 g bullet fired at 200 m/s.

Answers

Step 1: Identify the formula needed to solve this problem.

The formula for kinetic energy (KE) is:

KE = 1/2m~v^2

m = mass

v = velocity

Step 2: Make a list of the values given in the question.

mass (m) = 30 g

velocity (v) = 200 m/s

[tex] \frac{1}{2} m {v}^{2} \\ \frac{1}{2} \times 30 \times {200}^{2} \\ 15 \times 40000 \\ = 600000[/tex]

Answer:

6 × 10⁵ J

Explanation:

Kinetic Energy of a moving mass is defined as, half of the product of it's mass and the square of it's velocity.

[tex] \boxed{ \mathsf{K.E. = \frac{1}{2} m( {v})^{2} }}[/tex]

Mass of the bullet (m) = 30 gvelocity (v) = 200 m/ s

[tex] \implies\mathsf{K.E. = \frac{1}{2} \times 30 \times ( {200})^{2} }[/tex]

[tex] \implies\mathsf{K.E. = 15 \times 4 \times {10}^{4} }[/tex]

[tex] \implies\mathsf{K.E. = 60 \times {10}^{4} }[/tex]

[tex] \implies \underline{\mathsf{K.E. = 6 \times {10}^{5} J }}[/tex]

What is cellular respiration and how does it work

Answers

Explanation:

cellular respiration, the process by which organisms combine oxygen with foodstuff molecules

In a particular diploid organism, somatic cells have 24 chromosomes. How many pairs of homologous chromosomes would be present in the gametes of that organism

Answers

Answer:

12

Explanation:

It says 'pairs'.

What's metamorphism?
A) The process by which new minerals form from existing minerals that become unstable at Earth's surface
B) The process by which new minerals form from existing minerals as a result of elevated temperature or pressure
C) The process by which new minerals form as a result of biological processes in living organisms
D) The process by which new minerals form as a result of precipitation from an aqueous solution

Answers

Answer:

D) The process by which new minerals form as a result of precipitation from an aqueous solution

Which equation can be used to solve for acceleration?

Answers

Answer:

To do this you need to know equation for acceleration: a = Δv / Δt where a is acceleration, Δv is the change in velocity, and Δt is the amount of time it took for that change to occur. The unit for acceleration is meters per second per second or m/s2.

Explanation:

ayuda por favor doy corona​

Answers

Answer:

Mr est un jeune individu provenant de

How does lack of water conservation affect the hydrological cycle

Answers

[tex]⇒[/tex]

Human activity such as the burning of fossil fuels has an effect on the overall increase of the Earth's temperature. Raising the Earth's temperature means that there is an increase of evaporation, melting of land and sea ice, and impacts on other processes of the water cycle that adversely affect the climate on Earth.

- BRAINLIEST answerer

An environment in which nonliving substances and living organisms work together is called

A) a population
B) a community
C) an ecosystem


Hi can someone help me w this? thanks!

Answers

Answer:

the answer is

c.) ecosystem

Explanation:

ecosystem is a community of living things and non living things that interact in the same environment

Extra Information:

. Population- is a group of individuals of the same species living within an area

. Species - is a group of individuals that can reproduce naturally with one another and create a fertile offspring

.Community- is a group of living and non living things in the same environment

.Biotic factors - living things such as plants,animals,bacteria,fungi ... that are found in ecosystems

.Abiotic factors - non living things such as water,air,sans,light.. that are found in ecosystems

HOPE THIS HELPDS :D

Answer:

ecosystem

Explanation:

ye

which of the following scenarios is least likely to have a detrimental impact on an ecosystem?

A. people fish every species at a slower rate than they can repopulate.

B. people regularly engage in trolling catching numerous species as by catch.

C. people fish sharks for sharks fin soup at a faster rate than they can repopulate.

D. people fish bluefin tuna to the point that they become endangered.​

Answers

A.
if people are fishing species at a slower rate than they can repopulate, it won’t have a detrimental impact on an ecosystem.

around the mid-1850s, mendel crossed true-breeding purple-flowered pea plants with true-breeding white-flowered pea plants. the results of his research provided us with the basic principles of heredity.

Answers

Answer:

Yes and you can use a Punnett square to predict the genotype of their offspring!

Which of the following is a characteristic of invertebrates

A) highly developed senses

B) backbone

C) eclosed circulatory system

D) multicellular

Answers

Answer:

A.

Explanation:

They do not have highly developer senses or surely they don't have a backbone ,every animal that have a backbone isn't an invertebrate. They don't have an enclosed circulatory system neither

Which of the following is a biological hazard?
a) Noise
b) Fiber
c) Mold
d) Dust​

Answers

Answer:

ur answer is c i belive becasue it makes the enviroment around people hard to live in

Explanation:

ANSWER:

C) mold

EXPLANATION

Any risk that comes form the biosphere is a biological hazard. Fungi and mold are biological hazards. Mold can trigger respiratory problems such as asthma. It produces potentially toxic substances.

Hope this helps!! :)

1. Transcription happens in the _______ and translation happens at the _________.
a. mitochondria, chloroplasts
b. chloroplasts, mitochondria
c. nucleus, ribosome
d. ribosome, nucleus

2. Proteins are long chains of _________ assembled by _____ bringing them to the ribosomes.
a. nucleotides, mRNA
b. mRNA, nucleotides
c. amino acids, tRNA
d. tRNA, amino acids

3. What are three amino bases on the mRNA strand that codes for a specific amino acid is? What is the complementary bases on a tRNA molecule called?
a. Genetic code, DNA
b. DNA, RNA
c. Codon, anticodon
d. bird, dog

Answers

Answer:

1. C

2. C

3. C

Explanation:

Hope this helps.

how would you expect the return of the wolves to yellowstone to affect the other species there?

Answers

Due to the wolves being the natural predator of some species, like elk, the population would likely be impacted after the reintroduction of the wolves. These wolves would hunt their prey, causing a drop in population.

While you’re waiting for the lactase solution to cool, read the directions on the test strips. The test strips in the Edmentum lab kit will react to glucose within a few seconds. If you use different strips, the reaction time may vary. Now follow these steps to test the solutions. Record your data in the answer space.


Milk and water solution: Fill the first test tube one fourth full of milk. Fill the small graduated cylinder with water and gently add it to the milk in the test tube until the test tube is half full. Use the stirrer to thoroughly mix the solution. Then insert the test strip for 10 to 20 seconds. Look at the test strip, and record whether it changed color. Wash the stirrer.

Milk and lactase enzyme solution: Fill the second test tube one fourth with milk and one fourth with the lactase solution. Use the stirrer to thoroughly mix the solution. Insert the test strip for 10 to 20 seconds, and record whether it changed color. Wash the stirrer.

Milk an

Answers

Milk and lactase have glucose together because the enzyme lactase will break down the lactose molecule so the test strip can see the entire glucose molecule

Four friends were walking on a nature trail in their local park. They began to question whether or not the trees need to breathe, or need food like humans do. Here are their thoughts
:Katie:I think that plants need to eat but don’t need to breathe.
Hugo:I think that plants need to eat and need to breathe.
Danielle:I think that plants need to breathe but don’t need to eat.
Liam:I don’t think plants need to eat or breathe.
Circle the person you most agree with. Explain why you agree with that person

Answers

Answer: I agree with Hugo that plants do need to breathe and eat because Plants do require oxygen to respire, the process in return gives out carbon dioxide and eat thorugh the process of phoyosynthesis

Why do the cells in all living things need energy?


to help them decompose


to fuel their chemical reactions


to communicate with other cells


so they can block sunlight

Answers

Answer:

I think is the second one

Answer:

to fuel their chemical reactions

3. Which of the following statements best explains the purpose of Mitosis?
A. Mitosis is a cellular process that creates a copy of the cell's DNA.
B. Mitosis is a cellular process that creates new organelles inside of the cell.com
C. Mitosis is a process of cell division which creates two genetically identical daughter cells.
D. Mitosis is a cellular process that doubles the amount of chromosomes in a cell.

Answers

Answer:

C

Explanation:

During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.

C, it’s clear cells “double” each time

Match each hazardous waste with its matching description.

Words:
-asbestos
-mercury
-cadmium
-lead

Definitions:

A) Substance from thermostats known to cause reproductive issues

B) Substance known to cause lung cancer, found in older landfills

C) Substance found in computer monitors that causes brain damage

D) Hazardous cancer agent found in the batteries of many devices

Answers

Answer:

B is to asbestos

A is to lead

D is to cadmium

C is to mercury

if i could get a brainly answer i would appreciate

plzz help

Which describes a promoter?

a. the first part of an operon that regulates where, when, and to what level a gene is
expressed

b. the part of an operon that, if attached by a repressor protein, suppresses the
expression of a gene

c. a cluster of genes that are expressed or repressed as a group

d.an enzyme that helps DNA unzip prior to transcription

Answers

Answer: A

Explanation: email for more help my address is

charlescarey0906(at symbol)g ma il.com

no spaces or caps

Answer:

a :)

Explanation:

How does carbon dioxide enter leaves?

Answers

Plants get the carbon dioxide they need from the air through their leaves. It moves by diffusion through small holes in the underside of the leaf called stomata. These let carbon dioxide reach the other cells in the leaf, and also let the oxygen produced in photosynthesis leave the leaf easily.

The main goal of photosynthesis is to produce what?

Answers

Answer:

To spread carbon dioxide and oxygen.

Explanation:

Plants produce carbon dioxide and oxygen. This is called photosynthesis.

meaning of Natality Rate

Answers

Answer:

It's the same as the birth rate.

what is called renewable energy and nonrenewable energy​

Answers

Answer:

Resources are characterized as renewable or nonrenewable; a renewable resource can replenish itself at the rate it is used, while a nonrenewable resource has a limited supply.

Explanation:

Renewable resources include timber, wind, and solar while nonrenewable resources include coal and natural gas.

Answer:

The type of energy which can be used again and again is called renewable energy.

The energy which cannot be used again and again is called non renewable energy.

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