Yes , your answer is correct . just use your notes & continue going with first mind
Answer: Nucleotides
Explanation: DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).
Explanation:
1.cell membrane far apart from the cell wall thats why the plant cells shrinked
3.cell walls are made of cellulose while cell membrane made of phospholipid.
4.water and nutrien cant enter by diffusion because the molecule is too big.
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Answer:
50% portion are from mother...
Explanation:
If crossing over does not occur then 3 auto-somes as well as one X chromosome shall always come from mother. Even if two XX were present in case of a female 50% of chromosomes shall always be contributed by the mother...
Generation-to-generation change in the allele frequencies in a population is _____.
a. genetic drift b. natural selection c. macroevolution d. mutation e. Microevolution
Answer:
e. Microevolution
Explanation:
Microevolution refers to the small changes in the allele frequencies and the genotype frequencies of the populations. These changes occur over a few generations and deviate the populations from the genetic equilibrium.
The processes responsible for microevolution are mutations, genetic drift, gene flow, etc. Similarly, sexual selection and nonrandom mating also change the allele frequencies of the populations. Likewise, natural selection brings about microevolution by increasing the frequencies of the alleles that impart the beneficial traits to the organisms.
