Question

Study
CEPHALOPODS
SPECIAL EDITION
ctopuses, squids, and cuttlefish are a type of mollusk called cephalopods. These soft-bodied invertebrates reproduce sexually. They are fast swimmers and aggressive predators. With prominent heads and multiple tentacles, cephalopods are known for their complex behaviors and for being extremely intelligent.
squid
Cephalopods also have a remarkably large genome-it's even larger than the human genomel Their genome stands out because it has many genes related to neuron connectivity, which might explain their unusually large brains and intelligence. Cephalopods are so smart that they can solve puzzles, use tools, and even open jars.
Adding Variation
Sexual reproduction is not the only process that contributes to making offspring different from their parents. Squids and octopuses, for example, have developed a clever mechanism that increases variation in traits without really having to make changes to their genetic information.
Some genetic information becomes traits by means of a messenger molecule called RNA, RNA is the molecule that allows the expression of genetic information.
In a process called RNA editing, squids and octopuses can make changes to RNA, the messenger molecule. RNA editing leads to a change in traits that are expressed, regardless of the information coded in the genome. The highest rate of RNA-editing takes place in nervous system cells in cercitalopods its triggered by environmentall factors, it could be turned om wihen the cialisco travels freith the tropics from the ancific. Or it will tum affi the RNA editing withem the cecialiccodremains in one llocation.
Ome flasicimatic feature of RONA editting is that matt all of the messenger miclecules are edited the same way. As a result, many different. RNA messenger moleculles can come out of one single gene
Scientists think that this increase in variation may also explain cephalopods complex brains and high intelligence. They also wonder whether there could be a trade off. By relying on RNA editing to adapt to such influences in the environment as temperature changes and experiences, could these special cephalopods be losing something else? After all, these specific changes are mot passed down to their offspring Read the case study and answer the following questions.
1. SEP Analyze Data Suppose the ability to edit RINA is a dominant trait. A male squid with two dominant alleles for RINA editing sexually reproduces with a female squid that has two recessive alleles for RNA editing. Will their offspring be able to edit their RNA? Explain And what paragraph is it

Answer 1

Yes. If the ability to edit RNA is dominant, a male with two dominant alleles (AA) crossed with a female with two recessive alleles (aa) will produce offspring that are all Aa (heterozygous). Because the dominant allele is present, all offspring will show the dominant phenotype — they will be able to edit their RNA. (Punnett square: AA × aa → 100% Aa.)

The supporting information about RNA editing appears in the paragraph that begins "In a process called RNA editing, squids and octopuses can make changes to RNA, the messenger molecule..." (the paragraph after the sentence defining RNA as the messenger molecule).