An individual with nonidentical alleles for a gene is called ________ for that gene
a. recessive
b. heterozygous
c. hemizygous
d. homozygous
b
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The part of a flowering plant that becomes the fruit is the ________
a. ovule b. embryo sporophyte c. zygote d. ovary
Mammalian genomes all have a number of genes for globin polypeptides. Several of these genes are functional, but several are never expressed. What are the nonfunctional ones known as?
What will be an ideal response?
Since females take on the larger parenting role in most species, what tendency do they have?
A. They are the choosy sex. B. They compete heavily for access to high fitness males. C. They produce large numbers of gametes. D. They acquire polyandrous groups of male mates.
Which cells are alive at maturity?
A. Sieve elements B. Vessel elements C. Tracheids D. Vessel elements and tracheids E. Sieve elements and vessel elements