Question at position 3 Genetically engineered mosquitoes are being used to fight mosquito-borne illnesses. These mosquitoes have been outfitted with a gene that makes them resistant to pathogens like malaria. To ensure that the resistance gene is transmitted through the entire mosquito population, genetic engineers have attached the it to a gene drive, a self-genetic element that biases what cell division process?interphasetransposon jumpingmitosismeiosisgametogenesisClear my selection单项选择题
A
interphase
B
transposon jumping
C
mitosis
D
meiosis
E
gametogenesis

Question

Question at position 3 Genetically engineered mosquitoes are being used to fight mosquito-borne illnesses. These mosquitoes have been outfitted with a gene that makes them resistant to pathogens like malaria. To ensure that the resistance gene is transmitted through the entire mosquito population, genetic engineers have attached the it to a gene drive, a self-genetic element that biases what cell division process?interphasetransposon jumpingmitosismeiosisgametogenesisClear my selection单项选择题

A

interphase

B

transposon jumping

C

mitosis

D

meiosis

E

gametogenesis

BlackTom AI · Accepted Answer

Question restatement: Genetically engineered mosquitoes carry a resistance gene linked to a gene drive, and the question asks which cell division process the gene drive biases in.
Option 1: interphase. Interphase is the stage of the cell cycle when the cell grows and copies its DNA before division. A gene drive does not bias the choice of phases during interphase; this option does not describe a division process and thus is incorrect for explaining how gene drives bias inheritance.
Option 2: transposon jumping. Transposons are mobile genetic elements that can move within the genome, but a gene drive is a distinct mechanism designed to bias inheritance through gamete production rather than a random transposition event. While both involve genome dynamics, transposon jumping does not specify a biased inheritance mechanism during a particular cell division.
Option 3: mitosis. Mitosis distributes identical sister chromatids into two daughter cells for somatic cell division, but a heritable gene drive is aimed at sexual reproduction and inheritance through gametes. Biasing mitosis would affect somatic cells, not heritable transmission through offspring, so this option does not explain how a gene drive propagates through a population.
Option 4: meiosis. Meiosis is the cell division process that produces gametes (sperm and eggs) with half the chromosome number. A gene drive is designed to bias inheritance during meiosis so that the resistance gene is transmitted to more than half of the offspring, enabling its rapid spread through the population. This aligns with the purpose of gene drives in population modification strategies.
Option 5: gametogenesis. Gametogenesis refers to the overall process of forming mature gametes, encompassing meiosis and maturation steps. While related to the production of gametes, the specific mechanism by which gene drives bias inheritance occurs during meiosis itself, not merely the broader process of gametogenesis. Therefore, this option is less precise than meiosis for identifying the biased inheritance mechanism.
In summary, the question targets the division process responsible for biased transmission in gene drives. The mechanism is tied to meiosis, the stage where allele transmission to gametes is determined, enabling biased inheritance of the linked resistance gene.

类似问题

在减数分裂的双线期，同源染色体通过下列哪种结构连接在一起？（1分）

A diploid (2n) cell undergoes meiosis. How many chromosomes will each gamete contain?

Question at position 73 Crossing over between homologous chromosomes occurs during and homologous chromosomes separate from each other during .prophase I; anaphase IIprophase II, telophase Iprophase I; anaphase Iprophase II; telophase II

Question at position 62 If a diploid cell (2n = 16) undergoes meiosis I and II, the result is:2 cells; each with 2n = 82 cells; each with 2n = 164 cells; each with n = 84 cells; each with 2n = 322 cells; each with 2n = 32

Question at position 5 Crossing over occurs in Printed Blank[input]Question Blank 1 of 1[input] 1.anaphasecytokinesistelophaseinterphasemetaphaseprophase

In the ovule each megaspore mother cell undergoes _____ to produce four megaspores.

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单