A student observes cell division in two different cells of a lily plant.
Cell A
germ cell in the anther of a lily
producing sperm cells
Cell B
cell in the root tip of an onion
producing root cells
What number of divisions does each cell undergo in a single cycle of cell division?
Cell A
Cell B
1
2
O
Cell A
Cell B
TIN
O
Cell A
Cell B
2
1
2
Cell A
Cell B
4

Answer:

Where I have used the term "chromosome complement," I am simply referring to the "complete" chromosome makeup of the nucleus of a cell in the flowering plant life cycle. The Merriam Webster Third New International Dictionary has many definitions for complement, but the one I am using is "the quantity or number required to fill a thing or make it complete." On the chromosome questions I want the "complete" chromosomes (represented by letters) for various cells and nuclei in the plant life cycle. For example, if ABCD refers to the chromosomes of an egg and abcd refers to the chromosomes of a sperm; then AaBbCcDd refers to the complete chromosomes of a fertilized egg or zygote (ABCD + abcd = AaBbCcDd). In a number of questions I have referred to the chromosome complement of a specific cell or nucleus, such as the zygote. In this case the chromosome complement of the zygote would be AaBbCcDd. The chromosome complement of the embryo would also be AaBbCcDd. Just think of the chromosome complement as the complete chromosome makeup of a cell where large and small case letters stand for the actual chromosomes. If there is one of each letter, then the cell is haploid (e.g. ABCD or abcd). If there are two of each letter, then the cell is diploid (e.g. AaBbCcDd). If there are three of each letter, then the cell is triploid (e.g. AAaBBbCCcDDd). If there are four of each letter, then the cell is tetraploid (e.g. AAaaBBbbCCccDDdd).

In the following questions, the term haploid (1n) refers to one set of chromosomes. This is typically the number of chromosomes found in the single nuclei of sex cells (gametes). In the flowering plant life cycle, this is also the chromosome number of the three nuclei within a germinated pollen grain (pollen tube) and the eight nuclei within an embryo sac. In plants, the haploid part of the life cycle is called the gametophyte. The normal haploid number for a human egg or sperm is 23 chromosomes (n = 23). The term diploid refers to two sets of chromosomes resulting from the union of the sperm and the egg. This is typically the number of chromosomes found in the nuclei of body cells (somatic cells) of a plant or animal. In plants, the diploid part of the life cycle is called the sporophyte. In a normal human, the diploid number is 46 chromosomes (2n = 46). The following link to life cycle patterns may be helpful in understanding the gametophyte and sporophyte parts of a life cycle. In the diagrams, everything above the red horizontal line is diploid (sporophyte) and everything below the red line is haploid (gametophyte). The terms sporophyte and gametophyte are used in the life cycles of plants, fungi and algae, but not animals.

what does mitosis diagram look like
​

What is meant by the statement “ Viruses are cell specific” ?

wanna meet my new kitten guess the correct number between 10 and 40 1 and 30 and 20 and 50 it is a combination of 3 numbers and a bonus of brainly :) good luck!

using the images provided, explain what each image illustrates. You may cite specific evidence from each of the three images.

(GIVING BRAINLIEST!!!!!!!!!)


Which of the following images show high air pressure?

A and B
A and D
B and C
C and D

the flow of energy in some australian food chains is modeled in the energy PYRAMID BELOW

If the average length of a double helix in human chromosome is 3.9 cm, approximately how many base pairs are present in such chromosome?

2. How might this population suddenly increase? How might this affect the ecosystem?
(artic fox / artic tundra)

4. Which of the following best describes how LAMARCK would explain giraffes with long necks? A. Long-necked giraffes eat more grass that short-necked giraffes, so their necks grow longer. B. Natural variation in the population produces some longer and some shorter-necked giraffes, and necked giraffes can reach food more easily C. Some giraffes have acquired longer necks by stretching to reach food and passed the trait to the D. Giraffes just started out with long necks and haven't changed.​

What is a likely reason for the change from mitosis to meiosis during reproduction

What is Mendol’s contribution to genetics?

3. Artana collects Information on 24 organisms and groups them based on the Linnaean system. Her friend argues that
she should not just put the common name of the organism but should also list the organisms' genus and species names.
Ariane argues that she did enough work and doesn't need to add more research. Which evidence could convince Arana
to add more information?
A. The common name does not sound scientific
3. The genus and species are Latin and easier to read.
C. The common name can change depending on region.
D. The genus and species are a broad level of classification

Why is it important to maintain Homeostasis

*
What type of vaccine is made of part of the pathogen, called the antigen?'

Which of the folllowing usually results when members of the same species require the same food and space?

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answer the question and then find key word(s) from the question that helped you get the answer.

A positively charged particle has great difficulty penetrating a target nucleus because the target nucleus has
1.a positive charge, which repels the particle
2.a negative charge, which attracts the particle
3.the protection of surrounding electrons
4.a very high binding energy

How is salinity affected when precipitation increases

you can only answer yes or no for each question.

Yes
No

Evaluation Question


Did you gather sufficient evidence to create your original explanation?


Does your original explanation thoroughly describe how energy and matter move through the environment under both aerobic and anaerobic conditions?


Did you research additional information about chemosynthetic organisms to revise your explanation?


Did you write an additional paragraph explaining what you learned and how it changes your original explanation?


Are your explanations clear and coherent?


Are your paragraphs free of spelling, grammatical, and punctuation errors?

HELP
Which phrase best describes a point source of water pollution?

A species of fly can either have the dominant trait of red eyes, or the recessive trait of brown eyes. If one heterozygous fly mates with a brown eyed fly, what percentage of the offspring would you expect to have

Which statement is true regarding meiosis in cells?
O In anaphase I, sister chromatids are pulled apart at the centromere.
O In prophase II, homologous chromosomes are paired up in a tetrad.
O The daughter cells do not undergo cytokinesis at the end of meiosis
The products of telophase I are two haploid daughter cells..

Populations can have variety, despite being made up of
the same species. If a population has different expressed
traits, this can be due to different inherited alleles. The
frogs below are the same species, but they have different
shades of green based on their inherited alleles. In a
particular environment, lighter green frogs are easier to see
by predators. Explain how natural selection could lead to a
change in allele frequency.

When defining concentration during diffusion, what exactly are we describing?​

What is the phenotype of a person whith the genotype I^Ai?

I WILL MARK BRAINLIEST) What is a definition and analogy for genotype and phenotype

How are the number of representatives in the house determined?

what is the animal with unique characteristics? to be choosen from every other ones?

pls!! help me at least give me your ideas, what animal you most like and the reason you like it!! ​

He walks the way
To the f bus?

A scientist had two substances. One was a yellow liquid. The other was a colorless liquid. The scientist added a few drops of the yellow liquid to the colorless liquid. A red solid formed.