Mass is the measurement of
a. a line, extending from one point to another.
b. the space an object occupies.
c. the quantity of matter present in an object.
d. the degree of hot or cold of an object.
c
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________ membranes allow some molecules to pass but not others.
A. Selectively permeable B. Inverted monolayer C. Impermeable D. Permeable
Sturtevant provided genetic evidence for the existence of four pairs of chromosomes in Drosophila in which of these ways?
A) There are four major functional classes of genes in Drosophila. B) Drosophila genes cluster into four distinct groups of linked genes. C) The overall number of genes in Drosophila is a multiple of four. D) Drosophila genes have, on average, four different alleles.
As scientists were unraveling the mysteries associated with transcription and translation in eukaryotes, they discovered there was not a one-to-one correspondence between the nucleotide sequence of a gene and the base sequence of the mRNA it codes for
They proposed the genes-in-pieces hypothesis. How can the genes-in-pieces hypothesis be explained? A) Introns are noncoding segments of DNA that are present in the initial transcript, but are removed by splicing. B) Introns are noncoding segments of DNA that are not read or transcribed by RNA polymerase II. C) Exons are noncoding segments of DNA that are not read or transcribed by RNA polymerase II. D) Exons are noncoding segments of DNA that are present in the initial transcript, but are removed by splicing.
The world ocean covers 70.8% of the earth's surface
Indicate whether the statement is true or false