Question

Genetics question: GRS1 is a transcription factor that is expressed throughout the tomato plant. Peppers have...

Genetics question:

GRS1 is a transcription factor that is expressed throughout the tomato plant. Peppers have two genes that are homologous to GRS1: one is expressed in the leaves and one is expressed in the roots. What evolutionary model explains this pattern?

A) Neofunctionalization

B) Subfunctionalization

C) Dosage

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

B is the right answer.

Explanation: Neo functionalisation model of evolution states that a gene evolved is found to carry a new function.

Dosage model tells that the gene expression is maintained in two sexes. This is done by reducing the expression of one gene by heterochromatised that gene.

Sub functionisation model states that the duplicated gene bears the same function as found in ancestral gene. The GRS 1 gene is expressed in two places because the gene is insertee at two different promoter. One is inserted at leaves promoter and another one is inserted at root promoter.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
QUESTION 21 Which molecule or enzyme mediates the process of Transcription? a. RNA Polymerase b. RIbosomes...
QUESTION 21 Which molecule or enzyme mediates the process of Transcription? a. RNA Polymerase b. RIbosomes c. Primase d. DNA Polymerase e. ribosomal RNA QUESTION 22 Which site of the tRNA molecule binds to the mRNA molecule? a. Poly-A tail b. anti-codon c. codon d. exon e. intron QUESTION 23 Which of the following accurately describes the Central Dogma? a. RNA to Protein to DNA b. DNA to Protein to RNA c. DNA to RNA to Protein d. Protein to...
In Drosophila, loss-of-function Ultrabithorax mutations result in the posterior thoracic segments differentiating into body parts with...
In Drosophila, loss-of-function Ultrabithorax mutations result in the posterior thoracic segments differentiating into body parts with an identity normally found in the anterior thoracic segments. When the Ultrabithorax gene was cloned, it was shown to encode a transcription factor and to be expressed only in the posterior region of the thorax. Thus, Ultrabithorax acts to specify the identity of the posterior thoracic segments. Similar genes were soon discovered in other animals, including mice and men. You have found that mice...
QUESTION 1 :The alleles of a particular gene segregate independently into individual gametes (sex cells) during...
QUESTION 1 :The alleles of a particular gene segregate independently into individual gametes (sex cells) during meiosis. True or False QUESTION 2:The DNA sequence of a gene is a phenotype. True or False QUESTION 3:Two diploid individuals, one homozygous and the other heterozygous at a particular gene, make babies. Which of the following statements about the offspring genotype is correct? (Hint: draw Punnett squares) A. All offspring are heterozygotes B. All offspring are homozygotes C. 1/2 of the offspring are...
QUESTION 2 The textbook considers the extension of the Ricardian model to more than two goods...
QUESTION 2 The textbook considers the extension of the Ricardian model to more than two goods – let’s consider the case of more than two countries. Consider a world of FIVE countries: two countries (A, B, C, D and E), that produce clothing and food with one factor of production, labor. Suppose the opportunity cost of clothing with respect to food (aLC/ALF) in each country is the following: A: 1    B: 2   C: 3   D:4   E:5 Suppose the international...
1A )Choose the false statement: A) Genes that are carried by current species will have no...
1A )Choose the false statement: A) Genes that are carried by current species will have no impact on the evolutionary pace or direction of future life; hence, regardless of what kinds of changes in biodiversity are brought on by climate change, the potential for new life forms remains infinite. B) A modern-day extinction, as is occurring today due to climate change, will probably result in a loss of biodiversity rather than a new explosion of diversity as occurred in the...
(9) 1- You want to test whether soil nitrogen content predicts plant height, so you measure...
(9) 1- You want to test whether soil nitrogen content predicts plant height, so you measure nitrogen in the soil and plant heights from throughout Ōtautahi/Christchurch. You run a regression and have this resultant ANOVA table. What is the F value for the model? df Sum of squares Mean Squares Model 1 7.4667 7.4667 Error 8 8.5783 1.0723 Select one: a. 1.148874 b. 0.8704172 c. 0.143611 d. 6.963257 2- The Pearson correlation coefficient r : Select one: a. Gives the...
Question 11 pts ________________ is a specific version of a gene on a homologous chromosome that...
Question 11 pts ________________ is a specific version of a gene on a homologous chromosome that has a corresponding version of a similar gene on a homologous chromosome. For example, hair color gene (ie. red from mom) will be on one homologous chromosome and a possibly different version of hair color gene (ie. black from dad) will be on the other corresponding homologous chromosome. chromosome allele chromatin genome Flag this Question Question 21 pts A ___________ is how you write...
Probability and Genetics Lab In heredity, we are concerned with the occurrence, every time an egg...
Probability and Genetics Lab In heredity, we are concerned with the occurrence, every time an egg is fertilized, of the probability that a particular gene or chromosome will be passed on through the egg, or through the sperm, to the offspring. As you know, genes and chromosomes are present in pairs in each individual, and segregate as they go into the gametes (egg and sperm). There are two possible genes (alleles) that the egg or sperm might obtain from each...
12. If the DNA repair mechanisms fail to correct a defect in nucleotide sequencing, a permanent...
12. If the DNA repair mechanisms fail to correct a defect in nucleotide sequencing, a permanent change known as a __________________ may result. 13. As the enzyme helicase opens and “unzips” the two strands of DNA by breaking the hydrogen bonds, a Y-shaped ________________________ forms. a. Lagging strand b. Leading strand c. Okazaki fragment d. Replication fork 14. One large difference between transcription and translation between prokaryotes and eukaryotes is that, in prokaryotes: a. Translation occurs simultaneously with transcription b....
1. Nutrition’s role in the later years. As people age, the choices they have made throughout...
1. Nutrition’s role in the later years. As people age, the choices they have made throughout their lives—in the areas of diet, exercise, and lifestyle—all have an impact on who they are and what their nutritional and energy needs are. In addition, stress and genetics also impact these needs. Use your knowledge of nutrition and older adults to answer the following questions to the best of your ability. Regular _ is the most powerful predictor of a person’s mobility in...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT