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zubka84 [21]
3 years ago
9

Which of the following statements is true?

Biology
1 answer:
kondaur [170]3 years ago
6 0

Answer:

Bacteria and protozoa are the examples of unicellular organisms.

Explanation:

Unicellular are the organisms which madeup of single cell such as bacteria and protozoa. Bacteria are prokaryotic organisms i. e. no true nucleus. Some bacteria make their own food from photosynthesis and some bacteria are parasites and other are decomposers.

Protozoa are eukaryotic organisms which are heterotrophic in nature i. e. feed on other organisms. Amoeba and paramecium are the examples of protozoa.

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Consider the results of a testcross performed on an organism heterozygous for 2 genes. For each scenario of gene arrangement for
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Answer:

Following are the answer to the given points:

Explanation:

  • Unlinked - Nonrecombinant progeny (50%), recombinant progeny (50%)
  • Fully related genetics - 100% non-recombining genetic progeny (parental)
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Mendel had established some essential concepts concerning inherited mechanisms such as the patterns of transmission of genes to offspring depending on their chromosomal placements. This same notion of linkage was offered to describe the pattern of the legacy of alleles on its chromosomal position.

Two different chromosomes have specific isoforms – for example, A and B which have two different features. As just a result, 50 percent of gametes are parental throughout type AB, and the other 50 percent of a recombinant in zygotes are quasi (aB & Ab) and 50 percent of the progenies that outcome from this mixture of gametes, therefore, are nonrecombinant in 50% and the cloned in 50 percent of the genetic makeup AaBb.

With two fully linked genes, e.g they exist on the very same chromosome and no cross-over occurs, all gametes are similar to parent types (AB and ab), like they do not split themself nor are diverse and culturally produced (nonrecombinants).

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3 years ago
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<span>If a mutation introduces a new skin color in a lizard population and that </span>mutation makes some lizards more fit for their environment than other lizards then the frequency of <span>the new allele will increase. For example, if a mutation causes some dark skin color which can help some lizards to survive. The more lizards with dark skin color will survive, and after some time, the frequency of the new allele will increase.</span>
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