The_____ of a flower contains one or more ovaries in which eggs develop, fertilization occurs, and seeds  mature. a. pollen sac c. receptacle b. carpel d. sepal

Q: The long solenoid structure of the chromatin material binds to a protein scaffold through the SARS o...

A: The solenoid model of DNA is the packaging of DNA in case of eukaryotes.  Short region of DNA doubl...

Q: Why are stem cells used for repair or damaged tissue cells? Where are they found? What type of stem ...

A: 1. Stem cells are undifferentiated progenitor cells that have the capability of differentiating into...

Q: Which bases can exist in either keto or enol form

A: Tautomers are molecular isomers found in fluid or in cells. Chemical bonds are changed numerous time...

Q: Question 15 The following statements best describes the RNA structure EXCEPT A it is usually single ...

A: RNA (ribonucleic acid) is a molecule which is a polymer of nucleotides. Unlike DNA which is double s...

Q: Describe the process of regeneration.?

A: The natural process through which injured or misplaced cells, tissues, or organs are healed or repla...

Q: What are the three primary regions of mRNA sequences in bacterial cells?

A: mRNA is the messenger RNA that is formed by the process of transcription.   

Q: Where can KecKzia rhizonkila, Escherichia coli, and Bacillus subtilis generally be isolated from in ...

A: Introduction: Microorganisms are widespread in nature. In the five-kingdom classification, they are ...

Q: What is attenuation? What are the mechanisms by which the attenuator forms when tryptophan levels ar...

A: Certain terms are fundamental concepts and terms used in biology, which is the study of life and liv...

Q: Do the differences among plant species result in higher levels of primary production than would be p...

A: Primary production represents the amount of carbon fixed by the process of photosynthesis in a given...

Q: How does genetics provide strong evidences of evolution of life?

A: Genetics is the field of biology that studies genes, genetic variation, and heredity in organisms, w...

Q: For your protist, please answer the following questions: 1. What protist did you select? 2. What sup...

A: 1. My protist is Forams or foraminifera. 2. It belongs to Supergroup Rhizaria. 3. They catch their f...

Q: Label the parts of the flower shown above

A: Flowers exist only for the purpose of sexual reproduction, guaranteeing the species' survival. Sever...

Q: Explain how some lncRNAs serve as molecular decoys for RNA-binding proteins and miRNAs.

A: Long noncoding RNAs (lncRNAs) are a novel class of epigenetic regulators that play a key role in epi...

Q: What enzyme is missing in the Ahxk2 cells, and what reaction does the enzyme catalyze?

A: Wild type cells are usually considered as dominant. Here wild type cells (white) and hexokinase muta...

Q: Select ALL statements about digestive systems that are true: A. carnivores have longer digestive tra...

A:

Q: Elaborate repair mechanisms that prevent permanent mutations in DNA are associated with replication,...

A: The genetic information is stored in the nucleotide sequence of DNA.  

Q: Explain how NH4+ can be toxic to cells. How is this toxicity avoided?

A: Introduction:  The organic nitrogen in plants and animals decomposes to ammonia when they die. Ammon...

Q: lucidate how external factors cause Philippine vertebrates to develop epidermal and dermal derivativ...

A: The epidermis is the outermost of the three layers that make up the skin; the dermis and hypodermis ...

Q: Compare and contrast hydra, saccharomyces, and paramecium in terms of the reproductive patterns they...

A: Hydra reproduce by both asexual by budding and sexual method by formation of testes and ovaries. Sac...

Q: Vhich of the following types of RNA participate in protein synthesis by bringing the amino acids to ...

A: Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in coding, deco...

Q: Which of the following features is associated with the Watson and Crick model of the DNA?

A: 1. Watson and crick described that DNA strands right which twisted around each other forming right h...

Q: Which of the following phrases does not describe a function of the promoter?a. Serves as sequence to...

A: Promoter sequences are DNA sequences that define the start of RNA polymerase transcription of a gene...

Q: Why is transcription a particularly important level of gene regulation in both bacteria and eukaryot...

A: Transcription is the process in which formation of mRNA take place on a DNA template. This process i...

Q: If the gene for primase were mutated so that no functional primase was produced, what would be the e...

A: DNA replication is the process by which new DNA strands are formed.  

Q: Humans with AB blood-type will produce: a. A and B antibodies b. A and B antigens c. No antigens d. ...

A:

Q: Could it be that lineage-restricted multipotent stem cells are derived from acNeoblast and seeded th...

A: In cell biology, functionally and structurally limited cells to behave in a differentiated manner ar...

Q: Why do species live where they do?

A: A biological species is a collection of creatures that can reproduce and generate fertile offspring ...

Q: Some animals fall between endothermic and ectothermic. a) What is this thermoregulation category cal...

A: Thermoregulation is the ability of body to keep the temperature under certain limits. 

Q: Which type/s of histones is/are not part of the histone octamer wrapped by DNA strands but is found ...

A: Histones are proteins that round the DNA. Histones are classified as H2A, H2B, H3, and H4. These cre...

Q: The interplay of pathogens and antibiotics again brings up the problem of the Red Queen. How does th...

A: A pathogen is any organism that invades and proliferates within an organism's body causes infectious...

Q: Some cancer researchers have proposed using a-amanitin in cancer therapy. How might a-amanitin be us...

A: Amanitin is considered one of the most effective drugs that can kill cancer cells which are highly p...

Q: Pregnant women can benefit from a folic acid suppleme A. True R EalsA

A: Vitamin is an organic molecule that is an essential vitamin that an organism needs in modest amounts...

Q: Question 18 Ribosomes are made up how much RNA component? (A) 50% в) 1/3 © 2/4 D) 2/3

A: Ribosomes are the organelles present in cells which are made from RNA and protein. Ribosomes are the...

Q: The supercoiled DNA can either be positively or negatively supercoiled. A True B False

A: The DNA double helix wraps around a nucleosome, forming a supercoil. One turn of a Solenoid is made ...

Q: Describe post transcriptional processing of RAN eukaryotes

A: Post transcriptional modification it is the process by which pre m RNA go through several step of ed...

Q: Meiosis of cells in pollen sacs forms haploid______ . a. megaspores c. stamens b. microspores d. spo...

A: Meiosis is a cell division process that produces four gamete cells while halving the number of chrom...

Q: why do we used Living cell microsope for?

A: Microscope is an instrument that is used to observe objects that are too small to be seen by our nak...

Q: What is the difference between PCR and real-time PCR, and how do you explain it?

A: The Polymerase chain reaction (PCR) is a technique that allows researchers to rapidly make millions ...

Q: Compare the pattern of early growth that occurs in eudicots andmonocots after germination

A: The embryonic stage of a plant's life is represented by the seed. The embryo (immature seed), endosp...

Q: Describe the location and purpose of the synovial membrane.

A: The entire skeletal system is linked together by joints, which aid in various forms of movement. A j...

Q: 21.Trace a protein molecule from the mRNA for it leaving the nucleus to its secretion from the cell....

A: Cytosolic protein lack N terminal signal peptide. Translation completes on free cytosolic ribosomes....

Q: are part of the adaptive immune system and able to establish immunological and memory. These mark pa...

A: Immune response is defined as the process through which the body's immune cells recognise invading p...

Q: What would be the most likely effect of a mutation at the following locations in an E. coli gene? a....

A: Part A. There will be no transcription. Part B. The rate of transcription will be decreased. Part C....

Q: Frog Testis 1. pointed cells? 2. cell origin of #1? 3. specific process that produced #1? 4. one str...

A: Testes is a male reproductive cell. 

Q: In the trp operon, what happens to the trp repressor in the absence of tryptophan?a. It binds to the...

A: An operon is a DNA unit that contains a cluster of genes controlled by a single promoter. The genes ...

Q: Compare and contrast analogous, homologous and vestigial

A: The living creatures such as birds , fishes etc. are included under the animal kingdom. These organi...

Q: Small RNA molecules are involved in numerous genetic processes, including replication, translation, ...

A: Introduction: The two types of nucleic acids are RNA and DNA. The nucleic acid serves as a repositor...

Q: Question 6 The helical turns of the DNA does not only provide spaces for binding with regulatory pro...

A: Introduction: RNA and DNA are the two types of nucleic acids. The nucleic acid serves as a repositor...

Q: RNA polymerases carry out transcription much more slowly than DNA polymerases carry out replication....

A: The process of producing two daughter strands, each containing half of the original DNA double helix...

Q: Which is the dominant form of DNA found in the cell? (A z BA с) н D) B

A: The self-replicating biomolecules, that are present in the chromosomes and carries genetic informati...

Angiosperm Reproduction

The process of sexual reproduction in flowering plants is known as angiosperm reproduction. In flowering plants, reproduction begins with pollination, or the transfer of male gametes (pollen) from the male reproductive organ (anther) to the female reproductive organ (pistil), and ends with fertilization of the female gametes (egg), which produces a zygote, which then grows to become a mature plant.