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Nezavi [6.7K]
3 years ago
9

An AAaa tetraploid plant undergoes self-fertilization. At least two dominant A alleles are needed to obtain the dominant phenoty

pe. At what frequency will progeny with the dominant phenotype appear?
Biology
1 answer:
MatroZZZ [7]3 years ago
3 0

Answer:

The frequency will be  35/36

Explanation:

An AAaa tetraploid plant will only produce a gamete which will be Aa, but during a self crossing a progeny with genotype AAaa will be produced and this will happen at a frequency of 35/36 and this simply means that the progenies produced during the self crossing  will all have a dominant phenotype

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Analysis of the data obtained shows that two students each have two fragments, two students each have three fragments, and two s
Readme [11.4K]

Question: Please use the following information to answer the question(s) below.  A group of six students has taken samples of their own cheek cells, purified the DNA, and used a restriction enzyme known to cut at zero, one, or two sites in a particular gene of interest.

Analysis of the data obtained shows that two students each have two fragments, two students each have three fragments, and two students each have one only. What does this demonstrate?

Answer:

"The two students who have two fragments have one restriction site in this region."

Explanation:

A restriction enzyme, restriction endonuclease, or restrictase is an enzyme that cuts DNA into trashes at or close precise appreciation sites inside particles identified as restriction locations. Restriction enzymes are one session of the wider endonuclease collection of enzymes. In the laboratory, restriction enzymes (or restriction endonucleases) are used to cut DNA into minor trashes. The scratches are constantly made at exact nucleotide arrangements. Unlike restriction enzymes recognise and cut diverse DNA sequences.

6 0
3 years ago
What are two diffrences between replication and transcription?
Ghella [55]
Replication - The action of copying or reproducing something.
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Transcription - First step to gene expression, in which a particular segment of DNA is copied into RNA (especially mRNA) by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language.

1.) Transcription involved both DNA and RNA, whilst replication only involves DNA.
2.) Replication uses two identical replicas of DNA, whilst transcription is copied.

Hope I helped.
5 0
3 years ago
Robins are birds that sing to attract mates. Two male robins, Robin A and Robin B, are both singing to attract females. Robin A
exis [7]

Answer:

A. Robin A will have an easier time finding a mate.

Explanation:

He will have an easier time since he have more songs, which the females find attractive.

4 0
3 years ago
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