Question

Please answer all 3 no need to go in Depth The cytoplasm of an unfertilized egg...

Please answer all 3 no need to go in Depth

The cytoplasm of an unfertilized egg _____.

  • Does not contain substances that are important in directing development. These substances are produced by the DNA of the fertilized zygote.

  • Is an unevenly distributed mixture of mRNA, proteins, organelles, and other substances

  • Is a homogeneous mixture of mRNA, proteins, organelles, and other substances

  • Does not contain substances that are important in directing development. These substances are supplied by the sperm.

  • Does not contain substances that are important in directing development. Development is directed solely by the surrounding cells.

MicroRNAs and small interfering RNAs both function similarly in "silencing" genes. What are two ways in which they may act?

  • inhibit RNA splicing and bind to complementary DNA sequences to prevent transcription

  • cut up mRNAs using the Dicer enzyme and bind to complementary mRNA sequences to prevent translation

  • cut up mRNAs using the Dicer enzyme and bind to complementary DNA sequences to prevent transcription

  • degrade mRNA and bind to complementary mRNA sequences to prevent translation

  • degrade mRNA and inhibit RNA splicing

The discovery of many non-coding RNAs is causing scientists to revise the long-held view that ______

  • All genes code for proteins.

  • There are only 3 types of RNA—tRNA, rRNA, and mRNA.

  • The vast majority of the human genome consists of "junk" DNA.

  • Only DNA that codes for protein, tRNA, and rRNA is transcribed.

  • all of the above


Homework Answers

Answer #1

The cytoplasm of an unfertilized egg - Is an unevenly distributed mixture of mRNA, proteins, organelles, and other substances

MicroRNAs and small interfering RNAs both function similarly in "silencing" genes. What are two ways in which they may act? - degrade mRNA and bind to complementary mRNA sequences to prevent translation

The discovery of many non-coding RNAs is causing scientists to revise the long-held view that - The vast majority of the human genome consists of "junk" DNA.

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