A. Spermatogenesis begins at puberty for males and continues until death: oogene

Question

A. Spermatogenesis begins at puberty for males and continues until death: oogenesis begins before birth for females, freezes until puberty, and continues 64. Spermatogenesis and oogenesis differ in which of the following ways in humans? until B. Spermatogenesis results in four sperm produced per starting primary epermatocyte, oogenesis results in only one ovum per primary oocyte spermatogenesis has even eytokinesis, oogenesis has very uneven D. All of the above 65. Hemoglobin is the protein that makes red blood cells red: it's function is to transport oxygen from the lungs in the blood. Hemoglobin cannot function without the presence of an iron ion. In this example, what is the iron ion? A. Enzyme B. Cofactor C. Solute D. Electrolyte 66. Glycolysis is an ancient chemical process shared by earth. Which of the following statements describes what happens during glycol almost every living thing on ysis? A. Glucose is broken into two pyruvate molecules, producing B. Sun energy is converted into chemical energy C. DNA?S replicated in preparation for cell division D. Proteins are assembled into enzymes ATP n humans, freckled faces are controlled by one gene. The allele for having freckles (F) is completely chromosome. If an individual has the genotype Ff, what would their phenotype be? dominant over having no freckles (f), and the gene is not found on a sex A. No Freckles B. Freckles C. Some freckles, but less than FF individuals D. Solid darker pigmentation on all their skin 68. When an animal is genetically altered in gene 'pharming', the gene of interest is inserted into the egg by microinjection and then fertilized and implanted into a surrogate mother. The resulting offspring, when mature, will then produce the gene product in its: A. Blood B. Liver C. Milk D. Brain 69. This is the organ of photosynthesis in a plant: A. Roots B. Stems C. Leaves D. Flowers

Explanation / Answer

64.

D. all of these are correct

65.

B. cofactor ( A large number of enzymes require iron as a cofactor for their functions)

66.

A. glucose is broken down into 2 pyruvate molecules, producing ATP.

other options are

B. photosynthesis

C. DNA replication

D. modification of proteins

67.

B. Freckles

Freckled traits are completely dominant so according to the law of dominance, the dominant trait will be expressed both in homozygous and heterozygous condition.

68.

A. Blood

69. C. leaves are the organ of the plant where photosynthesis occurs.

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