Explain how the resulting phenotypic ratios from Mendel's dihybrid cross assisted him in framing his Second Law
What will be an ideal response?
Mendel explained the results of his cross involving two traits by assuming that alleles of one gene pair segregate into gametes independently of the alleles belonging to other gene pairs, resulting in gametes containing all combinations of alleles. This second fundamental principle of genetics is called the principle of independent assortment or Mendel's Second Law.
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This lineage of Echinoderms is made up of sea lilies and feather stars, although the group was much
more diverse and abundant 500 million years ago. Adult feather stars can swim or crawl, while adult sea lilies are sessile, with their central disk attached to a stalk.
a. Echinoidea b. Ophiuroidea c. Crinoidea d. Holothuroidea e. Asteroidea
Parthengogensis is when what happens?
What will be an ideal response?
What process best characterizes Ca2+ movement from the cytosol (low Ca2+ concentration) into the endoplasmic reticulum (high Ca2+ concentration)?
A. Calcium movement occurs by passive diffusion. B. Calcium movement is spontaneous. C. Calcium movement occurs by facilitated diffusion using a transporter protein. D. Calcium movement involves active transport. E. Calcium movement does not require energy.
What is being described? DNA sequence in front of the genes that determines the start of transcription
What will be an ideal response?