Answer:
I and II
Explanation:
FSH receptors are found in granulosa and teak in the ovary and in sertoli and Leydig cells in the testicles.
This cells are part of the epithelial and connective tissue of the ovary and testicle.
The expression of FSH receptors (FSHR) has been identified in extra-gonadal tissues, including endothelium, monocytes, placenta, endometrium, malignant tissues, bones and adipose tissue. In the bones it is found in osteoclasts that are connective tissue.
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Comparative anatomy is the study<span> of similarities and differences in the anatomy/structures in organisms of </span>different<span> species.
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Answer:
This question lacks options, the options are:
A. They may act to turn on gene transcription.
B. They may act to turn off gene transcription.
C. They may become added to DNA, and then be transcribed.
D. They may remove a gene from DNA.
E. They may alter the nucleotide sequence in a gene.
Options A and B are the answers.
Explanation:
Prokaryotes regulate gene expression at the transcriptional level. Gene expression is the process whereby living organisms synthesize useful products such as protein from a gene. Prokaryotes such as bacteria control the expression of their genes via proteins that bind to DNA called REGULATORY PROTEINS.
These regulatory proteins also known as TRANSCRIPTION FACTORS, act to regulate genes by binding DNA. The binding of DNA either prevents or promote the binding of RNA polymerase in order for transcription to occur.
- Regulatory proteins which may act to inhibit transcription of DNA by turning off gene are called REPRESSORS.
- Regulatory proteins which may act to promote transcription of DNA by turning on gene are called ACTIVATORS.