What is meant when we use the term “gene clone” versus what we mean when we use the term “recombinant plasmid” (4 pts). Answer in two to four complete sentences.
In: Biology
In: Biology
How should epidemiology play a role in the health policy determinations that affect the application of screening tests? Your initial response should be 250 -500 words in length.
In: Biology
In: Biology
The allele frequency for the spider syndrome allele in a flock of sheep is 0.41. The normal allele N is dominant to the n allele, and homozygous nn lambs do not survive to reproduce. In the flock, all NN and Nn animals are retained, and all nn animals are removed from the herd. Determine the allele and genotypic frequencies in the flock following a single generation of selection.
In: Biology
In: Biology
What result did Avery, McLeod, and McCarty obtain in their experiments with virulent bacteria?tr
A. The transformation in mice observed by Griffith could also occur in vitro
B. RNase desstroyed the transforming principle
C. DNase destroyed the transforming principle
D. All of the above
E. Both a and c
In: Biology
What is a protist ? Why do you describe a protist using monophyletic, paraphyletic, or polyphyletic groups ? What are these groups and examples from the,?
In: Biology
PLZ type the answer for question one so I can read it easily. huge thumbs.
1-What are autologous cells, their benefits, and drawback
2- A man and a woman walk into a genetic counselor’s office. The woman has a brother who has been diagnosed with hemophilia, a sex-linked condition. The man has no family history of the illness. They are considering having children. Which of the following statements are appropriate and correct things to say to this couple?
1-The chance of any given child from this couple having hemophilia is approximately 50%
2-Assuming the woman and her afflicted brother have the same mother, the chance of a male child from this couple having hemophilia is approximately 25%
3-The chance of a female child from this couple having hemophilia is approximately 50%
4-An egg donor might be a good idea, if they are open to the idea
5-A sperm donor might be a good idea, if they are open to the idea
6-The two should probably adopt, and not spread their bad genes
In: Biology
The height of a type of bean plants is determined by five unlinked genes called A, B, C, D, and E. Each gene has two alleles: additive (uppercase letter) and nonadditive (lowercase letter).
How many phenotypic classes would you expect?
The shortest plants are 130 cm. The tallest plants are 220 cm. Estimate how many centimeters each allele contributes to the height difference.
The genotypes are known for two bean plants. Plant 1 is genotype AABbccDdEE. Plant 2 is genotype aaBBCcDdEE. What are their heights?
If the two plants from above are crossed, what is the probability they will produce a plant that is taller than either parent?
In: Biology
In response to shortened day length and cool temperatures in the fall, many trees begin a period of senescence when the breakdown of chlorophyll exceeds chlorophyll production. The leaves of these trees appear to change to yellow and orange. Using your knowledge of photosynthetic pigments, explain the source of these yellow-orange hues.
In: Biology
Distinguish between the structure of a prokaryotic cell and that of a eukaryotic cell.
In: Biology
9. You are studying cuttlefish and you observe that females mate primarily with larger males. You suspect that sexual selection may be influencing male size.
9a. Place a check (√) next to the pieces of information provided by your existing observations and place an X next to missing information you still need to be certain sexual selection is operating:
____Trait variation in males
____Trait variation in females
____Fitness differences in males
____Fitness differences in females
____Variation in the male trait confers a fitness benefit
____Variation in the female trait confers a fitness benefit
____Genetic basis for the male trait
____Genetic basis for the female trait
9b. Females may be choosing larger males because large size is a proxy for high __________________
In: Biology
question: Should we consider human embryos a persons?
i need the answer to be at lease 10 sentences long please and thank you!!
In: Biology
How does the Coronavirus affect our community?
In: Biology