P generation АА ВВ aa bb Gamete formation Gamete formation Gametes (А В (a b) Fertilization F1 generation Aa Bb Gamete formation Gametes (A B a b A b a B Original combinations of alleles (nonrecombinant gametes) New combinations of alleles (recombinant gametes) Conclusion: Through recombination, gametes contain new combinations of alleles.

Q: How can prokaryotes, who do not reproduce sexually, achieve genetic variation?

A: Prokaryotes are the primitive organisms that lack a proper nuclear membrane. There is no separation ...

Q: V [Choose ) Topoisomerase II RNA polymerase helicase loader must accumulate enough for DNA replicati...

A: In transcription process RNA polymerase play major role which is a holoenzyme consist of core enzyme...

Q: What do you think is/are the most reliable criteria for determining muscle homologies? Are muscle na...

A: Homology is similarity in structure, it's physiology, which are been gained from the evolutionary an...

Q: Which  sentence says true about evolutionary relationship of organisms? *         a. DNA evidence sh...

A: Evolutionary relationship  It explains the relationship between species. It relates the similarities...

Q: A pea plant has a mendilian completely dominant gene for height lower colour phenotype. A pure breed...

A: Gregor Johann Mendel is considered to be the father of genetics. He postulated the theories of genet...

Q: why do lipids have a higher caloric value per gram than carbohydrates or proteins?

A: Calorie content: It refers to the amount of energy contained in a food or fuel. It is determined by ...

Q: Where in the cell would you expect to find lysosomal hydrolases if the enzyme that adds phosphate gr...

A: Our cell contains numerous proteins and each protein has a target location. The location of the prot...

Q: Please answer fast 1:10 dilution is made of a solution. DRAW how you would make a further 1:10,000 ...

A: Make a 1:10 dilution of a 1M NaCl solution, so mix the one "part" of the 1M solution with nine "part...

Q: If individuals vary, and variation affects survival and reproduction, and variation is heritable: t...

A: Charles Darwin developed a theory of evolution to explain the unity and diversity of life, based on ...

Q: What distinguishes carbs from lipids as an energy source?

A: Lipids are a diverse group of molecules that include fat, waxes, sterols, fat-soluble vitamins, trig...

Q: Is plastic surgery good

A: Yes in case anyone wants to improve the esthetics of a certain parts of the body, plastic surgery is...

Q: Which of the following is an example of pasteurization?   A surgeon washes her hands before surgery....

A:   Pasteurization :- It is the heat treatment or thermal process in which the harmful microbes or pa...

Q: Direction: Study the given series of events below. Arrange the sequence of the following events in c...

A:

Q: Monocot Dicot

A: Plants are very important. In our nature different types of plants are present . Some are called mon...

Q: HAWAIIAN HONEYCREEPER What mechanism of evolution is applied in this diagram? Explain your answer.

A: Evolution can be defined as orderly change in flora and fauna which existed over millions of year on...

Q: Can an eadthworm be capable of sensing? Make your predictions below by writing YES or NO on the spac...

A: Earthworm is a terrestrial invertebrate belonging to phylum Annelida in Kingdom Animalia.

Q: Microbial diseases of the integumentary system usually have the same signs and symptoms. How would o...

A: Human skin is composed of two main layers called the epidermis and dermis.

Q: EXPLAIN THIS IN NOT MORE THAN 5 SENTENCES. Charles Darwin published his book On the Origin of Specie...

A: Charles Darwin was a naturalist and gave very important theory of Natural selection. 

Q: Compare and contrast the following processes in plants and animals in terms of their reproduction, d...

A: * plants and animals reproduce sexually, which produces a male and female gametes to form a zygote. ...

Q: What are some mechanisms by which pathogenic bacteria cause diseases? Why is this knowledge importan...

A:  bacteria use different strategies to enter human body and it cause pathogenicity by septic shock to...

Q: Myosin binds to actin, then bends. What is ATP needed for next? A. to pump the Ca++ “keys” back into...

A: D option is the correct statement.

Q: Use the diagram to answer the question. Atmospheric Oxygen Atmospheric Carbon dioxide What do the la...

A: The balance between carbon dioxide and oxygen is maintained by plants and animals. The plants produc...

Q: What is the difference between a fruit and a vegetable? In what ways does human welfare depend on s...

A: Botany is a discipline of biology that studies plants and their structures, characteristics, and bio...

Q: Which genotype would be used to indicate an individual that has no recessive alleles? 1.aabb 2.AAbb ...

A: When humans reproduce, each parent contributes 23 chromosomes (long strands of DNA) to the child. Ea...

Q: Which of the following taxa is more likely to include fewer organisms in It Domain Kingdom Phylum Cl...

A: Taxonomy is the discipline of identifying, characterizing, and categorizing creatures, and it compri...

Q: Alex is newly pregnant with twins and curious about everything about her developing children. Her do...

A: Twins can be categorized into three types: fraternal twins(dizygotic), identical twins (monozygotic)...

Q: Suppose a girl ate too many sweets such as chocolates. How will the hormones (insulin) from her panc...

A: *suppose if a girl eat too many chocolates then the sugar level will be increased in her blood which...

Q: Q4. If someone's GFR is 120mL.min1, and their single-nephron GFR is 40nL.min-1, estimate how many fu...

A: GFR = single nephron gfr × no. Of active nephrons No. Of active nephrons =GFR/single nephron GFR Fir...

Q: What is the diffrence between ultimate and proximate explanation and provide a topic with questions ...

A: *ultimate explanations concerns on the fitness of a trait and whether it is selected or not selected...

Q: Are the caloric sweeteners used in food safe?

A: Sugars are a refined form of glucose that is a disaccharide (8-9 units of monomers) of carbohydrates...

Q: A phylogenetic tree is different from a cladogram in that it shows that all species are not related ...

A: Answer  The correct option for this question would be  It represents the time scale of evolution, in...

Q: hat parts are persistent throughout the development of the sea urchin embryo? Why are these present ...

A: The method of identifying distinct species based on their traits is known as taxonomic classificatio...

Q: Which steps are coenzymes formed? What are these molecules? Is the reaction to form them endergonic ...

A: Coenzymes are often broadly called cofactors, but they are chemically different.A coenzyme is an org...

Q: The extensive surface area of root systems is important for- O absorption of light for photosynthesi...

A: There are three types of root systems in plants: Taproot which is larger and grows faster, found in ...

Q: 25. Given the following mRNA codons and amino acids, construct a polypeptide from this DNA strand. D...

A: Transcription is a process in which the genetic information in the DNA is converted into RNA in the ...

Q: Draw a typical climate diagram for a tropical rainforest. Label all parts of the diagram and describ...

A: The tropical rainforest climatograph includes average rainfall and temperature information, whereas ...

Q: What are some industrial processes that use bacteria What are examples of human diseases caused by b...

A: Bacteria in industries :- Bacteria are used in various industries like food industry, pharma industr...

Q: An event that became a symbol for the antinuclear movement was the Three Mile Island accident. O Tru...

A: It is True that an event became a symbol for anti nuclear movement was the Three mile island acciden...

Q: Which of the following is the correct sequence of structures involved in the hearin external to inte...

A: Answer : Option (5) is correct. Pinna, tympanum, ossicles, cochlea, cochlear nerve.

Q: Enumerate the types of morphogenetic movements employed by vertebrate embryos in gastrulation. Give ...

A: Gastrulation is a process that takes place in the early developmental period. In this process a sing...

Q: What are the main features of animal husbandry? Explain thoroughly.

A: Animal husbandry represents the branch of agriculture that is about the care and rearing of livestoc...

Q: Make a spider key please on the ff organisms asap

A: Spider key is like a dichotomous key.  A dichotomous key is an important scientific tool, used to id...

Q: Desiccation, a time-honored method of preserving food, is effective because the   water content is t...

A: Desiccation is the process by which we decrease the amount of water in any organism or any non livin...

Q: How would you distinguish a stem cell from a B cell at the DNA level

A: Introduction: A stem cell is a type of cell that has the unique potential to differentiate into many...

Q: How is the plasma membrane best described? O a phospholipid monolayer with embedded proteins surroun...

A:

Q: 2. Distinguish a monocot root from a dicot root: CRITERIA MONOCOT ROOT DICOT ROOT 1. Size of the cor...

A: According to the question, we have to distinguish between monocots and dicots roots. We can do that ...

Q: Questions 1. Which of the lenses does not contribute the magnification of the specimen? 2. What are ...

A: Since you have posted a question with multi- sub parts , we will solve first three sub-parts for you...

Q: Dr. Cantu discovers an archaeon living in a hot spring in the El Tatio geyser field in Chile where t...

A: Answer :- Option (C) is correct. - Thermophilic.

Q: Why are earthworms important in our ecosystem?

A: Introduction: Earthworms have a reddish brown color with a cylindrical body. The body is also elonga...

Q: Suggest why the genes of prokaryotes are generally easier to modify than those of eukaryotes.

A: From the above question we have to explain  why the  genes of prokaryotes are generally easier to mo...