Answer:
Interphase: Lowest pic, left corner.
Cell appears to be in a normal state.
Metaphase: Left, above Interphase.
Chromosomes are beginning to align in the middle of the cell. Spindles form and begin to attach to their centromeres.
Anaphase: Lowest right pic.
The chromatids are pulled away from each other and brought to different sides of the cell.
Telophase: Above Anaphase.
The genetic material is now in its respective side of the cell, which now begins to split into 2. Nucleic membrane begins to form.
Cytokinesis: Above Metaphase.
The clevage furrow is forming and separating the cytoplasm and other organelles in the cells. When done, this will result in 2 identical cells (unless it's meiosis II).
The correct answer is: c. Transcription
Transcription is the first step of gene expression in which DNA molecule is copied (transcribed) into RNA (mRNA) by RNA polymerase. The process of transcription is divided into three phases:
1. Initiation
• RNA polymerase with transcriptional factors bind to gene promoter
• RNA polymerase unwinds DNA double helix (transcription bubble is formed)
2. Elongation
• RNA polymerases adds nucleotides complementary to DNA
3. Termination
• RNA polymerase gets to stop codon (transcribes a sequence of DNA known as a terminator)
• Formed complementary RNA strand is released from DNA-RNA complex
Answer:
Select
a and c
Hope it helps, please mark as brainliest.
Answer:
The C. elegans embryo is a powerful model system for studying the mechanics of metazoan cell division. Its primary advantage is that the architecture of the syncytial gonad makes it possible to use RNAi to generate oocytes whose cytoplasm is reproducibly (typically >95%) depleted of targeted essential gene products via a process that does not depend exclusively on intrinsic protein turnover. The depleted oocytes can then be analyzed as they attempt their first mitotic division following fertilization. Here we outline the characteristics that contribute to the usefulness of the C. elegans embryo for cell division studies. We provide a timeline for the first embryonic mitosis and highlight some of its key features. We also summarize some of the recent discoveries made using this system, particularly in the areas of nuclear envelope assembly/ dissassembly, centrosome dynamics, formation of the mitotic spindle, kinetochore assembly, chromosome segregation, and cytokinesis.
1. The C. elegans embryo as a system to study cell division
The C. elegans embryo is a powerful model system for studying the mechanics of metazoan cell division. Its primary advantage is that the syncytial gonad makes it possible to use RNA interference (RNAi) to generate oocytes whose cytoplasm is reproducibly (>95%) depleted of targeted essential gene products. Introduction of dsRNA rapidly catalyzes the destruction of the corresponding mRNA in many different systems. However, depletion of pre-existing protein is generally a slow process that depends on the half-life of the targeted protein. In contrast, in the C. elegans gonad, the protein present when the dsRNA is introduced is depleted by the continual packaging of maternal cytoplasm into oocytes (Figure 1). Since depletion relies on the rate of embryo production instead of protein half-life, the kinetics tend to be similar for different targets. By 36-48 hours after introduction of the dsRNA, newly formed oocytes are typically >95% depleted of the target protein.
Explanation:
Answer: AUG GU UGG AAU
Explanation: Since it's a point mutation which only effects single nucleotide; so in CGA codon, the second codon, deletion mutation has been occured while mRna strand is going to be synthesized, this has shortened the length of the resulting protein developed from these codons.
Since RNA contains uracil instead of thymine, so in place of thymine (T), uracil has been placed.
