Genetics and Developmental Biology

How do bacteria regulate transcription of these operons? (Mastering Genetics)

How do bacteria regulate transcription of these operons? (Mastering Genetics)

The question is about regulation of model operons.
The trp and lac operons are regulated in various ways. How do bacteria regulate transcription of these operons?
Sort the statements into the appropriate bins depending on whether or not eac

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KC53   36943   15 Replies

Helen91

Comparing wild-type and mutant fruit flies! HELP?

Comparing wild-type and mutant fruit flies! HELP?

Comparing wild-type and mutant fruit flies
Two different Drosophila flies (fruit flies), fly A and fly B, are shown below.

Classify each phrase or term as applying to fly A only, fly B only, or both fly A and fly B.
Drag each phr

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hunter4565   37524   17 Replies

McKenzie Monk

The instructions for assembling polypeptides are contained in DNA. Consequently, mutations in DNA so

The instructions for assembling polypeptides are contained in DNA. Consequently, mutations in DNA so

Point mutations

The instructions for assembling polypeptides are contained in DNA. Consequently, mutations in DNA sometimes affect protein structure. A mutation will initially affect a protein’s primary structure, but changes at higher lev

hunter4565   38268   8 Replies

Thi Pham

MasteringBIO: Calculating allele frequencies in a gene pool

MasteringBIO: Calculating allele frequencies in a gene pool

In the beetles described in the animation, there were two alleles for color, brown and green. Suppose that you discover a very small population of these beetles, consisting of the individuals shown below. How can you calculate the frequency of each a

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tatda   38802   15 Replies

Jackie Farolan

Part D - Adjusting probabilities based on new information

Part D - Adjusting probabilities based on new information

Individual IV-3 is born as a male affected with condition B but not condition A. His parents are bred again, and an ultrasound shows that the fetus is another male. The relevant portion of the pedigree is shown below.

Use this new informat

hotthot12   42703   9 Replies

Shiara Marie

Mastering Biology: Embryonic Development

Mastering Biology: Embryonic Development

After fertilization, embryonic development progresses through three stages:

cleavage, during which the zygote develops into a blastula through extensive cell division;

gastrulation, during which three tissue layers are establish

adrii01   44528   4 Replies

Sophia Santamaria

Identify the type of mutation that has led to each result shown.

Identify the type of mutation that has led to each result shown.

This chromosomal mutation on Mastering Biology is confusing me. If someone can help me I'd appreciate it very much! 

The picture is attached.

Post Merge: 10 years ago

adrii01   46292   4 Replies

Emilyb1224.eb

Fill in the genotypes for the indicated individuals in the pedigree by

Fill in the genotypes for the indicated individuals in the pedigree by

Pedigree 3 from Part A is shown below. Recall that this pedigree shows the inheritance of a rare, autosomal recessive condition.

Note that individual II-3 has no family history of this rare condition.


Fill in the genotype

zachary0130   48769   4 Replies

biobio3

Can you match terms related to operons to their definitions?

Can you match terms related to operons to their definitions?

Can you match terms related to operons to their definitions?

Drag the terms on the left to the appropriate blanks on the right to complete the sentences.

deboss_18   50795   5 Replies

BrieAMiller

Recombination and Linkage Mapping

Recombination and Linkage Mapping

Recombination in dihybrid crosses
You have screened for several new recessive mutations in a species of wasp.

    Wasps homozygous for apricot (aa) have pale orange eyes. (Wild-type eyes are brown.)
    Wasps

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sjohn092   50798   23 Replies

Emma Nye

Calculating probabilities in pedigrees

Calculating probabilities in pedigrees

Individuals III-3 and III-4 are expecting their first child when they become aware that they both have a family history of this recessive condition. As their genetic counselor, you can calculate the probability that they are carriers and that their c

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jessiijessii   60493   19 Replies

Emilia Diaz

In biology lab, you conduct a breeding experiment to test Mendel’s law of independent

In biology lab, you conduct a breeding experiment to test Mendel’s law of independent

I need help figuring this out!
Picture in attachment

janay11   74629   5 Replies

drollgirl

Three of the most prominent definitions of species are the biological species concept, the phylogene

Three of the most prominent definitions of species are the biological species concept, the phylogene

Part A - Comparing species definitions
Three of the most prominent definitions of species are the biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept.
Drag each characteristic

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hunter4565   74767   30 Replies

Amanda Davilien

Mastering Genetics: Transcription and RNA Processing

Mastering Genetics: Transcription and RNA Processing

Transcription and RNA Processing
During transcription, RNA polymerase synthesizes RNA from a DNA template with the help of accessory proteins. In this tutorial, you will review the steps of transcription in eukaryotes and bacteria and investigat

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deboss_18   91626   15 Replies

lexie.jacquez

Mendel's Law of Segregation Part A, B, and C (Chapter 14)

Mendel's Law of Segregation Part A, B, and C (Chapter 14)

Part A - Allele segregation and gamete formation

One character in peas that Mendel studied was yellow versus green seeds.
A cross between a homozygous yellow line (YY) and a homozygous green line (yy) will result in F1 plants t

biologyishard1   110639   11 Replies

sherifa shaw

As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells during

As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells during

As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells during cell division, the structure of the chromosomes changes.

Answer the three questions for each phase of the cell cycle by dragging the yes an

sue   179760   10 Replies

rh 82