subject
Biology, 11.03.2020 18:35 Camill0310

You are screening tomato varieties for plants that will resist a novel biotrophic pathogen. You should choose those with: Select all that apply.
a. a strong hypersensitive response.
b. a high diversity of R proteins.
c. fewer plasmodesmata connecting cells.
d. a high diversity of AVR proteins.

ansver
Answers: 1

Another question on Biology

question
Biology, 22.06.2019 01:00
What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.
Answers: 3
question
Biology, 22.06.2019 02:00
How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.
Answers: 1
question
Biology, 22.06.2019 13:00
Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
Answers: 1
question
Biology, 22.06.2019 15:00
The climate on the leeward side of a mountain differs from that on the windward side mostly in
Answers: 2
You know the right answer?
You are screening tomato varieties for plants that will resist a novel biotrophic pathogen. You shou...
Questions
question
English, 17.11.2019 04:31
Questions on the website: 13722367