1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
just olya [345]
3 years ago
10

Discuss external factors that impact negatively on your lifestyle choices namely;unsafe road use.​

Advanced Placement (AP)
1 answer:
Mariulka [41]3 years ago
7 0
Texting and driving
You might be interested in
A person displays a set of rare behaviors that
ElenaW [278]
A case study
I did that already
4 0
3 years ago
If a particular gene is located on the Z chromosome of this lizard species, describe why a lizard with a ZW genotype has a great
Whitepunk [10]

Answer/Explanation:

If a particular gene is located on the Z chromosome of this lizard species, describe why a lizard with a ZW genotype has a greater probability of expressing the recessive phenotype for the trait than a lizard with the ZZ genotype does.

If there is no dominant allele for a trait present on a homologous chromosome to mask the recessive allele, the recessive phenotype will be expressed. In this case, the gene is located on the Z chromosome. In an individual with a ZW genotype (female) there is no homologous Z partner, meaning whatever allele is present on the solitary Z chromosome will be expressed.

For each cross, describe whether genetics or temperature determines the sex of progeny produced from eggs incubated at 35°C . For each cross, describe whether genetics or temperature determines the sex of progeny produced from eggs incubated at 24°C .

ZW females X ZZ males at 24°C

Half of the progeny are female. This is likely determined by genetics, as there is a 50/50 chance that the offspring inherit Z or W from mother, and always Z from father

ZZ females X ZZ males at 24°C

None of the progeny are female. This is determined by genetics and temperature, as there are no W chromosomes to pass on to the offspring, meaning all offspring will always be ZZ. At this temperature, that means no ZZ females are produced.

ZW females X ZZ males at 35°C

Almost all of the progeny are female. This is likely temperature dependent, because there is equal possibility genetically that offspring could be male or female (inherit W or Z). However, the proportions are different between 24 and 36C, suggesting higher temperatures influence the sex determination. At higher temperatures, ZW and ZZ individuals develop into females

ZZ females X ZZ males at 35°C

Almost all of the progeny are female. This is likely temperature dependent, because there is equal possibility genetically that offspring could be male or female (inherit W or Z). However, at higher temperatures, ZZ offspring develop into females over males.

Predict the effect of increasing global temperatures on the continued presence of the W chromosome in this species of lizard.

At temperatures over 33C, there is a sharp shift towards female sex of XX individuals rather than males. The W chromosome determines a female, but is not required to do so. Increasing temperatures can also produce females. Therefore, the presence of the W chromosome will likely reduce or even disappear entirely, and the species could just rely on temperature to determine sex.

Scientists claim that, in this species, the W chromosome is unimportant in sex determination. Instead, proteins that are encoded by a gene or genes on the Z chromosome, and that are maximally expressed only at certain temperatures, are responsible for determining whether embryos will develop as females or males. Use the data to support this claim.

This is supported by the data showing that the presence of the W chromosome is not at all required to develop into a female. If you look at the ZZ x ZZ crosses, you can get all males or or females or a mix completely dependent on temperature, without a W chromosome in sight.

8 0
3 years ago
Why did sectional tensions strengthen during the 1850s
Annette [7]
I would say that the sectional tensions strengthened during the 1850s mostly because of slavery. As you already know, historically, the North and the South of US were very different. The North went out of its way to abolish slavery, whereas the South was pro-slavery. This is what created many tensions, and later on, even more wars between these two sections. 
7 0
3 years ago
85 + nothing equals what?
Alja [10]

Answer:

27

Explanation:

7 0
3 years ago
Read 2 more answers
Which of the following is not an example of intensive agriculture?
lianna [129]

Answer: Ranching

Explanation: Based on Von Thunen's model the more intensive agriculture would be ranching.

5 0
2 years ago
Other questions:
  • illustrate a brief distinction between accidents and risky behaviours and give one relevant example for each/4909263/cdd31c2e?ut
    8·2 answers
  • One advantage of check writing is:
    14·2 answers
  • describe one instance when the supreme cort "took on the president "and reduced the power of the office
    8·1 answer
  • European contact in America sparked a positive change in the development of the Atlantic world
    13·1 answer
  • What are some characteristics of effective notes? Check all that apply.
    6·2 answers
  • 21. Oedipus makes an important point about becoming king of Thebes. What is it?
    11·1 answer
  • An area of new plant and tree growth after cutting is called
    9·1 answer
  • Who likes anime /////////////////
    10·2 answers
  • Explain how the lack of ice in the arctic sea contributed to more greenhouse gases in the atmosphere.
    6·1 answer
  • According to the punnett square,it is probable that these parents will have--- female children
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!