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Bond [772]
3 years ago
9

Beanie Eyelash is a celebrity who does not have a widows peak, while Chris Hemsworth is a celebrity who does. What is a widows p

eak an example of?
A single gene traits
B polygenic traits
C single allele genotypes
D polygenic genotypes
Biology
1 answer:
weqwewe [10]3 years ago
3 0
I believe the answer to this one is (A) Single Gene Traits. I searched it up and it says “Widow’s peak occurs when the hairline forms a distinct point in the center of the forehead. Widow’s peak is controlled by a dominant allele (W).”
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Which organelles of a cell possess their own DNA?
Tanzania [10]
The Chloroplast possess their own DNA. This organelle has green orpiment called Chlorophyll. 
8 0
3 years ago
What happens during the initiation step of DNA transcription? A ribosome attaches to the initiation codon of a completed mRNA st
Amanda [17]

Answer:

<u>A portion of the DNA unwinds and RNA polymerase attaches to the DNA within the transcription bubble.</u>

Explanation:

Transcription is the process in which DNA template is used to synthesize  mRNA.

There are three steps of transcription:

  • <u>Initiation</u>

It is the process in  which a portion of DNA unwinds and RNA polymerase binds to the promotor region on the DNA.

  • <u>Elongation</u>

It is the process in which RNA polymerase moves along the DNA template and synthesizes mRNA. During this process, unwinding of double stranded DNA takes place.

  • <u>Termination</u>

As the RNA polymerase moves along the DNA template, it finally reaches a termination signal and then stops synthesizing. It is followed by the detachment of the newly formed mRNA and RNA polymerase from the DNA.

<u>QUESTION:</u>

  • <u> A ribosome attaches to the initiation codon of a completed mRNA strand.</u>

This is the incorrect answer choice as this process does not happen in the process of transcription. This event happens<u> in the process of translation in which mRNA is used to synthesize proteins or amino acids. mRNA attaches to ribosome during this process.</u>

  • <u>RNA polymerase moves along the template strand of the DNA creating an mRNA strand.</u>

This is the incorrect answer choice as this event takes place in the process of elongation.

  • <u>A portion of the DNA unwinds and RNA polymerase attaches to the DNA within the transcription bubble.</u>

This is the<u> correct answer choice as this event takes place in the process of initiation of transcription</u>

  • <u>The mRNA detaches from the RNA polymerase as the RNA polymerase leaves the DNA strand.</u>

This is the incorrect answer choice. This event takes place in the event of termination of transcription.

3 0
3 years ago
What description explains how a flower produces a seed? (2 points)
morpeh [17]

Answer:

Pretty sure its #3

Explanation:

Plants produce flowers to make seeds. To make a seed a flower must be pollinated. Pollen from the male part of one flower travels to the female part of another flower where the seeds are made. ... The petals act like an advertisement to attract various animals, which will carry the pollen from one flower to another.

8 0
3 years ago
Read 2 more answers
6. Which of the following is NOT a function of the liver? MULTIPLE CHOICE.
katrin [286]

Answer:D

Explanation

Liver is not involved in the product of blood clotting protein rather it is involved in the production of two hormones insulin and glucagon that play roles in regulating blood sugar.

5 0
3 years ago
In a using the template DNA below, transcribe an mRNA strand 3’-TAC AAG TGT CGC ACT-5’
zubka84 [21]

Explanation:

refer the above answer

thanks

7 0
3 years ago
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