A) evolution B) immunity C) heredity D) differentiation
A) type and order of amino acids B) environment of the organism C) nutritional habits of the organism D) availability of starch molecules
A) selective breeding B) differentiation C) cloning D) gene insertion
A) coiled strands of genetic material B) large molecules that have only one function C) folded chains of bonded glucose molecules D) reproductive cells composed of molecular bases
A) habitat modification B) natural selection C) asexual reproduction D) genetic engineering
A) The gene for insulin is turned ON in liver cells, but the gene for testosterone is not B) The gene for insulin is a sequence of five different molecular bases while the gene for testosterone is a sequence of only four differentmolecular bases. C) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria D) The gene for insulin has a different sequence of molecular bases than the gene for testosterone.
A) different groups of cells containing the DNA may be exposed to different environmental conditions, for example, more food for one but not the other B) DNA is functional in only 10% of the cells of the body C) some of the DNA in some of the cells will be removed by chemical reactions D) only the DNA in certain cells will replicate
A) mitosis → fertilization → meiosis B) meiosis → fertilization → mitosis C) fertilization → mitosis → meiosis D) fertilization → meiosis → mitosis
A) recombination B) zygote formation C) meiotic cell division D) mitotic cell division
A) the need to adapt and maintain homeostasis B) overproduction of offspring and competition C) sorting and recombining of genes in meiosis D) replication and cloning
A) produced more reproductive cells than the male panthers in Texas B) mated only with panthers from Texas C) solved the reproductive problems of the species by asexual methods D) increased the genetic variability of the panther population in Florida
A) rapid evolution of the organism in which the cell is found B) a mutation that will affect the synthesis of a certain protein in the cell but not the offspring C) increased variation in the type of organelles present in the cell D) an adaptation that will be passed on to other types of cells in the body
A) fusion of eggs and sperm to produce zygotes B) internal fertilization to produce an embryo C) meiosis to produce gametes D) mitosis to produce a larger population
A) oranges without seeds, only B) oranges with seeds, only C) a majority of oranges with seeds and only a few oranges without seeds D) oranges and other kinds of fruit
A) It is affected primarily by the eating habits and general health of the father. B) It is affected primarily by the eating habits and general health of the mother. C) It is not affected by conditions outside the embryo. D) It will not be affected by any medication taken by the mother
A) Offspring have a combination of genes from both parents. B) Replicated chromosomes separate during gamete formation. C) As an embryo develops, various tissues and organs are produced. D) The cells produced by a zygote usually have different genes.
A) a cancer that mutates and becomes elegant and beautiful B) the strange effects mannequins can have on people C) a dog named Samantha and how she helps her owner overcome obstacles D) a virus aimed to cure cancer that mutates and causes humans to become monster-like
A) usually lead to the death of the organism B) cannot be passed on to offspring C) are usually beneficial to the organism D) lead to more serious mutations in offspring
A) Each cell has half the normal number of chromosomes and the cells are usually genetically identical. B) Each cell has pairs of chromosomes and the cells are usually genetically identical. C) Each cell has half the normal number of chromosomes and the cells are usually genetically different. D) Each cell has pairs of chromosomes and the cells are usually genetically different.
A) synthesize the same proteins and enzymes as the entire colony is cloned from the original B) have a resistance to different antibiotics C) express adaptations unlike (different than) those of the other cells D) replicate different numbers of genes
A) affect the production of eggs B) make carrying a fetus impossible C) make fertilization impossible D) decrease her ability to provide essential nutrients to an embryo
A) estrogen B) ovary C) placenta D) progesterone
A) carry progesterone and fool the mother's body into thinking it is already pregnant B) provide plenty of testosterone for her well-being C) are easily digestable D) are made up of nutrient-rich sugars
A) causing mutations in the bacteria B) producing toxins that compete with bacterial toxins C) inserting part of their DNA into the bacterial cells D) engulfing (devouring) and digesting the bacteria whole
A) it takes a very long time to begin injecting its viral RNA code into the hosts' cells B) hijacks cells into making more viruses leaving the host defenseless to disease C) automatically causes AIDS D) provides immediate immunity to other diseases |